1. Roni can walk a certain distance in 410 days when he rests 9 hours a day. How long will be take to walk twice the distance, twice as face and rest tvwice as long each day?

2. A takes 2 hours more than B to walk d km, but if A doubles his speed, then he can make it in 1 hour less than B. How much time does B require for walking d km?

3. A computer takes 50 nanoseconds to do an addition. How many additions can it do in 1 second?

4. $(52.{02}^2-{3401}^2)÷17.99\times \sqrt{?}=1720$

5. in a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant , approximately what percentage of the selling price is the profit?

6. A boat runs at 22 km per hour along the stream and 10 km per hour against the stream .Find the ratio of the speed of the boat in still water to that of the speed of the stream .

7. The time taken by a man to travel 36 miles downstream is 90 min less than to go the same distance upstream . The speed of the man in still water is 10 mph. Find the speed of the stream?

8. A tank has two leakages. The first leakage alone can empty the tank in 9 min and the second alone would have done it in 6 min. If water leaks out at a constant rate , how long does it take both the leakage together to empty the tank?

9. Two tarins running in opposite direction cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is :

10. A person borrows TK. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6 1/4 % per annum for 2 years . Find his gain in the transaction per year.

11. A and B start at the same time with speeds of 40 km /hr and 50 km/hr respectively. If in covering the journey A takes 15 minutes longer than B, the total distance of the journey is -

12. Painter A can paint a house in 16 days and painter B can do the same work in 20 days . With the help of painter C, they paint the house in 8 days only. Then , Painter C alone can do this task in -

13. A bag contains 50 P , 25 P and 10 P coins in the ratio 5 : 9 : 4 amounting to TK. 206 .Find the number of coins of each type respectively .

14. $28\sqrt{?} +1426=\frac{3}{4}of 2872$

15. Two numbers are in the ratio 3 : 7 . If 6 be added to each of them, then they are in the ratio 5 : 9 Find the numbers?

16. The salaries of A , B and C are in the ratio of 1 : 2 : 3 The salary of B and C together is TK. 6000. By what percent is the salary of C more than that of A?

17. A tap can fill a tank in 6 hours. After half the tank is filled , three more similar taps are opened . What is the total time taken to fill the tank completely?

18. Fresh fruit contains 68% water and dry fruit contains 20% water, How much dry fruit can be obtained from 100 km of fresh fruits?

19. The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

20. A person's present age is two-fifth of the age of his mother. After 8 years , he will be one- half of the age of his mother . How old is the mother at present ?

21. A cylindrical rod of iron, whose height is equal to its radius, is melted and cast into spherical balls whose radius is half the radius of the rod . Find the number of balls.

22. A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is?

23. The sum of the present ages of a father and his son is 60 years. Five years ago, father's age was four times the age of the son. So now the son's age will be -

24. A bag contains 2 red Roses, 4 yellow Roses and 6 pink Roses. Two roses are drawn at random. What is the probability that they are not of same color?

25. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?

26. The compound interest on a certain sum of money for 2 years at 10% per annum is TK. 420 . The simple interest on the same sum at the same rate and for same time will be?

27. I f the rate of simple interest is 12% per annum the amount that would fetch interest of TK. 6000 per annum is ?

28. One -fourth of the boys and three -eight of the girls in a school participated in the annual sports. What proportional part of the total student population of the school participated in the annul sports?

29. A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup , How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?

30. If ${(p/q)}^{x-1}={(q/p)}^{x-3},then the value of n is...$

31. The marked price of an article is TK. 500. It is sold on two successive discounts of 20% and 10% .The selling price of that article is

32. . A, B and C enter into a partnership with a certain capital in which A's contribution is TK. 10,000. If out of a total profit of TK. 1,000, A gets Tk. 500, B gets Tk. 300the C's capital is

33. A man can walk uphill at the rate of 2.5 hm/hr and downhill at the rate of 3.25 km/hr. If the total time required walking a certain distance up the hill and return to the starting position is 4 hr 36 min, what is the distance he walked up the hill?

34. The least perfect square number divisible by 3, 4, 5, 6 and 8 is :

35. Aunik and Anam started a business investing Tk. 22,500 and Tk. 35,000 respectively. Out of a total profit of Tk. 13,800, Anam's share is :

36. The length of a rectangle is 18 cm and its breadth is 10 cm, When the length is increased to 25 cm, what will be the breadth of the rectangle if the area remains the same?

37. A man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is :

38. The average of six numbers is 3.95. The average of two of them is 3.4, while average of the other two is 3.85. What is the average of the remaining two numbers?

39. Two whole numbers whose sum is 72 cannot be in the ratio :

40. 0.213+0.00213=?

41. A 6% stock yields 8%. The market value of the stock is :

42. A and B can work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :

43. A train of length 150 metres takes 40.5 seconds to cross a tunnel of length 300 metres. What is the speed of the train in km/hr?

44. 54 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :

45. A can run 22.5 m while B runs 25 m. In a kilometer race B beats A by :

46. If a and b are odd numbers, then which of the following is even?

47. The simple interest on a sum of money will be Tk. 600 after 10 years. If the principal is trebled after 5 years, what will be the total interest at the end of the tenth year?

48. Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opended together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?

49. The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

50. The angle between the minute hand and the hour hand of a clock when the time is 8.30, is :

51. The greatest number that exactly divides 105, 1001 and 2436 is :

52. The compound interest on a certain sum for 2 years at 10% per annum is Tk. 525. The simple interest on the same sum for double the time at half the rate percent per annum is :

53. A sum of Tk. 312 was divided among 100 boys and girls in such a way that each boy gets Tk. 3.60 and each girl Tk. 2.40. The number of girls is :

54. A truck covers a distance of 550 metres in 1 minute where as a bus covers a distance of 33 kms in 45 minutes. The ratio of their speeds is :

55. Two-fifth of one-fourth of three-seventh of a number is 15. When is half of that number?

56. The difference of two numbers is 20% of the larger number. If the smaller number is 20, then the larger number is :

57. Find a number such that when 15 is subtracted from 7 times the number, the result is 10 more than twice the number.

58. On selling 17 balls at Tk. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is ---

59. A man buys Tk. 50 shares in a company which pays 10% dividend. If the man gets 12.5% on his investment, at what price did he buy the shares?

60. How many times do the hands of a clock coincide in a day?

61. In a 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by :

62. The length of a room is 5.5 m and width is 3.75 m. Find the cost of paying the floor by slabs at the rate of Tk. 800 per sq. metre.

63. At what rate of compound interest per annum will a sum of Tk. 1200 become Tk. 1348.32 in 2 years?

64. Reena took a loan of Tk. 1200 with simple interest for as many years as the rate of interest. If she paid Tk. 432 as interest at the end of the loan period, what was the rate of interest?

65. In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water (in km/hr) is :

66. How long does a train 110 metres long running at the speed of 72 km/hr take to cross a bridge 132 metres in length?

67. An athlete runs 200 metres race in 24 seconds. His speed is :

68. Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many will the tank be filled?

69. A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work?

70. P and Q started a business investing Tk. 85,000 and Tk. 15,000 respectively. In what ratio the profit earned after 2 years be divided between P and Q respectively?

71. The ratio of three numbers is 3 : 4 : 7 and their product is 18144. The numbers are :

72. The profit earned by selling an article for Tk. 832 is equal to the loss incurred when the same article is sold for Tk. 448. What should be the sale price for making 50% profit?

73. The difference between a number and its two-fifth is 510. What is 10 percent of that number?

74. The ratio between the present ages of P and Q is 6 : 7. If Q is 4 years older than P, what will be the ratio of the ages of P and Q after 4 years?

75. A two-digit number becomes five-sixth of itself when its digits are reversed. Two digits differ by one. The number is :

76. A number is as much greater than 36 as the less than 86. Find the number.

77. The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. What is the value of y?

78. Three-fifth the square of a certain number is 126.15. What is the number?

79. A boy was asked to multiply a number by 25. He instead multiplied the number by 52 and got the answer 324 more than the correct answer. The number to be multiplied was :

80. What mathematical operation come at the place of '?' in the equation : 2?6-12/4+2=11.

81. The value of (1+.1+.01+.001) is :

82. The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. The sum of the numbers is :

83. The difference between the place value and the face value of 6 in the numeral 856973 is --

84. একটি বর্গক্ষেত্রের আয়তন x তা হলে x এর বিচারে এটির অতিভুজের দৈর্ঘ্য কত?

85. যদি $a+b=\sqrt{5}$ ও $a-b=\sqrt{3}$ তবে $a^2+b^2=?$

86. (x+8) (x-7) এর গুণফল কত?

87. একটি বর্গক্ষেত্রের কৌণিক দৈর্ঘ্য $\sqrt{10}$ $\sqrt{10}$

88. যদি কিউব-ক এর সাইড ও কিউব-খ এর সাইডের অনুপাত ২ : ১, তা হলে এর তল দুটির অনুপাত কত?

89. বার্ষিক ১০% মুনাফায় কত বছরে ১০,০০০ টাকার মুনাফা ৬,০০০ টাকা হবে?

90. একটি বাক্সের দৈর্ঘ্য ৪ মিটার, প্রস্থ ২ মিটার এবং উচ্চতা ১ মিটার। বাক্সটির আয়তন কত?

91. একটি বইয়ের মূল্য ২৪ টাকা, যা প্রকৃত মূল্যের ৮০%। বাকী মূল্য সরকার ভর্তুকির দিলে তার পরিমাণ কত?

92. ৩ জন জেলে মিলে ৮৮০ টি মাছ ধরেছে। তাদের অংশের অনুপাত ২ : ৪ : ৫ হলে কে কত মাছ পেল?

93. যদি একটি মেশিনের একটি পণ্য উৎপাদনে ১/২ মিনিট সময় লাগে, তবে ২ ঘন্টায় কয়টি পণ্য উৎপাদন করতে পারবে?

94. প্রথম পাঁচ সংখ্যার নিয়মিত ধারাবাহিকতা হল ৪, ১০, ২২, ৪৬ এবং ৯৪। পরবর্তী সংখ্যাটি কত?

95. বার্ষিক শতকরা ৭% হারে লাভে কত টাকা জমা দিলে ১৮ মাস পরে ১০০০ টাকা হবে?

96. যদি ১০০০ টাকার উপর ৬ মাসে লাভ হয় ৬০ টাকা, তবে লাভের শতকরা হার কত?

97. ২% এর ভগ্নাংশ কত?

98. নিচের কোনটি সবচেয়ে বড়?

99. ৮ জন ছাত্রছাত্রীর গড় বয়স ৮ বছর। যদি শিক্ষকের বয়স অন্তর্ভুক্ত করা হয় তা হলে গড় ৭ বছর বাড়বে। শিক্ষকের বয়স বের কর?

100. যদি একটি সংখ্যার ৫/১৫ অংশ ১০ এর সঙ্গে যোগ করলে হয় ২৮। সংখ্যাটি কত?

101. প্রদত্ত সিরিজের পরবর্তী সংখ্যাটি কত? ১, ১, ২, ৩, ৫, ৮, ১৩, ----?

102. যদি ২/x=৪ এবং২/y = ৮ হয় ( x-y) = কত?

103. একজন বিনিয়োগকারী ২৫০০ টাকার কিছু অংশ ৫% ও বাকি অংশ ৬% লাভে বিনিয়োগ করেছেন। তিনি বছর শেষে ৮০ টাকা আয় করে থাকলে ৫% লাভে বিনিয়োগের পরিমাণ কত?

104. A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the larger field is greater than the area of the smaller field by what amount ?

105. A manufacturer sells three products i.e A, B and C . Product A costs 200 and sells for 250, Product B costs 150 and sells for 180 , product C costs 100 adn sells for 110. On which product, he has maximum percentage of profit?

106. If the length of each of the sides of three square garden's plots is increased by 50 percent, by what percent is the sum of the areas of the three plots increased ?

107. Three angles of a triangle are in proportion 5 : 6 : 7. Then what is the difference in degrees between the biggest and the smallest angles?

108. A short distance athlete has taken 60 seconds to cover 100 meters . If he makes 30 steps in 9 seconds , how many steps has he taken in that time?

109. There are 15 balls in a box 8 balls are green 4 are blue and 3 are white. Then 1 green and 1 blue balls are taken from the box and put away. what is the probability that a blue ball is selected at random from the box?

110. If an inspector rejects 0.08% of a product as defective , how many units of the product will he examine in order to reject 2 ?

111. In triangle ABC, AB = AC . All of the following statements are true except__

112. A lamp is manufactured to sell for $35.00, which yields a profit of 25% of cost . If the profit is to be reduced to 15% of cost , what will be the new retail price of the lamp?

113. In a class of 120 students 70 percent can speak only Bengali and the rest can speak English . If 25 percent of those in the class who can speak English can also speak Bengali , how many of the students in the class can speak bengali?

114. The area of a rectangle R with width 4 ft is equal to the area of a square S , which has a perimeter of 24 ft. the perimeter of the rectangle R, in feet, is __

115. Three boys have marbles in the rotio of 19 : 5 : 3 If the boy with the least number has 9 marbles , how many marbles does the boy with the highest number have?

116. If (x +y) >5 and (x -y)> 3, then which of the following gives all and only possible values of x?

117. The ratio between the perimeter and the breadth of a rectangular is 5 : 1 . If the area of the rectangle is 216 cm2 , what is the length of the rectangle?

118. There are n students in a school. If r% among the students are 12 years or younger, which of the following expressions represents the number of students who are older than 12?

119. If x and y are consecutive positive integers, which of the following must be an even integer?

120. A wheel rotates 10 times per minutes and moves 20 m during each rotation . How many feet does the wheel move in 1 hours?

121. The same of principal and simple interest of a certain amount of money would be Tk. 460 after 3 years form now and Tk. 500 after 5 years for now . what is the total interest rate?

122. The[ triangular base of a prism is a right triangle of sides a and b = 2a . The height h of the prism is equal to 10 mm and its volume is equal to 40 mm3 , what will be the lengths of the sides a and b of the triangle ?

123. A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks , how many of them were correct?

124. A two - digit number has 3 in its unit digit. The sum of its digits is one seventh of the number itself. what is the number ?

125. $(2\sqrt{27} -\sqrt{75} +\sqrt{12})is equalto$

126. Increasing the original price of an item by 10% , then decreasing by 20% and then again increasing the price by 10% is equivalent:

127. Triangle ABC has the following vertices : A ( 1,0), B ( 5, 0) and C ( 3, 4) . which of the following is true ?

128. The total age of A and B is 12 years more than the total age of B and C.C is how many years younger than A?

129. The price of a pen is 25% more than the price of a book. The price of a pen holder is 50% more than the price of the book. How much is the price of the pen holder more than the price of the pen?

130. A wholesaler sells goods to a retailer at a profit of 20% . The retailer sells to the customer , who pay 80% more than the cost of the wholesaler . what is the retailer's porfit?

131. An iron rod that weighs 24 kg is cut into two pieces so that one of these pieces weighs 16kg and is 34 m long . If the weight of each piece is proportional to its length , how long is the other piece?

132. One dozen eggs and ten pound of apples are currently of the same price . if the price of a dozen eggs rises by 10% and that of apples rises by 2% how much more will it cost to buy a dozen of eggs and ten pounds of apples?

133. Four liters of milk are to be poured into a 2 liter bottle and a 4 liter bottle . If each bottle is to be filled to the same fraction of its capacity, how many liters of milk should be poured into the 4 liter bottle?

134. In a club 50% of the male voters and 80% of the female voters voted for candidate A . If candidate A received 70% of the total votes, what is the ratio of male to female voters?

135. If two planes leave the same airport at 1 : 00 PM, how many miles apart will they be at 3 : 00 PM, if one travels directly north at 150 mph and the other travels directly west at 200 mph?

136. $If x=1+\sqrt{2} and y=1-\sqrt{2}$ find the value of $(x^2+y^2)$

137. If the perimeter of a certain rectangle is 76 m and its area is 360 m2, then what is the length of its shortest side?

138. Square of a number plus two times the number equal 63. what is the number ?

139. If for integer x, 5

140. The lengths of sides of a triangle are in the ratio of 3 to 5 to 6. If the perimeter of the triangle is 70, what is the length of the longest side?

141. A is 30% more efficient than B. How much time will they, working together , take to complete a job which a alone could have done in 23 days?

142. For what value of x is $8^{2x-4}={16}^x?$

143. $If a^x=b,b^y=c and c^z=a,then the value of xyz is--$

144. An article when sold at a gain of 5% yields Tk. 15 more than when sold at a loss of 5%. Its cost price would be__

145. A gardrn of 100 m length and 60 m width has a walkway of 2 m width hon every side. what is the area of the area of the garden , in square meter , excluding the walk way?

146. If x and y are consecutive positive integers which of the following must be an even integer?

147. How much interest will Tk. 1000 earn in one year at an annual interest rate of 20% if interest rate is compounded every 6 months?

148. A mixture of 20 sprit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%

149. when a certain number is divided by 7, the remainder is 0. if the remainder is not 0 when the number is divided by 14, then the remainder must be __

150. A 10% monthly salary increase resulted in a Tk. 9000 per year increase in salary for an employee. What was his monthly salary before the increase ?

151. Three individuals contributed Tk. 8000 each toward the purchase of a computer. If they bought the computer on sale for Tk. 19500 plus 10% sales tax, how much money should be refunded to each individual ?

152. A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A's share is TK. 855 ,the total profit is :

153. A sum of TK. 427 is to be divided among A ,B and C such that 3 times A's share , 4 times B's share and 7 times C's share are all equak The share of C is :

154. A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottoms. If the cistern is full, the leak will empty it in ?

155. A number is decreased by 10% and then increased by 10% .The number so obtained is 10 less than the original number. What was the original number?

156. A rectangular field is to be fenced on three sides leaving a side of 20 m uncovered. If the area of the field is 680 $m^2$ ,how many meters of fencing will be required?

157. The volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is $12.8m^2$ $12.8m^2$

158. The ages of X and Y are in the proportion of 6:5 and total of their ages is 44 years. The proportion of their ages after 8 years will be

159. A word consists of 9 letters; 5 consonants and 4 vowels. There letters are chosen at random. What is the probability that more than one vowel will be selected?

160. A bag cotains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is -

161. If the compound interest of a certain sum of money for two successive years be TK. 225 and Tk. 238.50 . What is the rate of interest per annum?

162. At simple interest of 5% , 6% and 8% for three consecutive years, the interest earned is TK. 760. Find the principl

163. Some money is divided amongst three workers A ,B and C such that 5 times A's share is equal to 12 times B's share which is equal to 6 times C's share. The ratio between the shares of A ,B and C is?

164. If a = $\sqrt{3}/2, then \sqrt{1+a} +\sqrt{1-1}=?$

165. A trader marks his goods at 20% above the cost price . If he allows a discount of 5% for his down payment, his profit percent for such a transaction is -

166. A, B and C invested capitals in the ratio of 4 : 6 : 9 At the end of the business term, they received the profit in the ratio of 2 : 3 : 5. Find the ratio of their time for which they contributed their capitals.

167. Speed of a boat in standing water is 9 km/hr and the speed of the stream is 1.5 km/hr. A man rows to a place at a distance of 105 km and comes back to the starting point .The total time taken by him is -

168. A boatman takes twice as long to go a distance upstream as to travel the same distance downstream . What is the ratio of the speed of the boatman (in still water) and the current?

169. Two men and three women can repair a bridge in 10 days while three men and two women can to same work in 8 days. If two men and one woman are used to finish this work , in how many days they will complete it?

170. $(\sqrt{1372} +\sqrt{959} )÷\sqrt{292}\times 19.003=?$

171. A boy travelled from the home to the college at the rate of 25 km/hr and walked back at the rate of 4 km/hr. If the whole journey took 5 hours 48 minutes, Find the distance of the college from the home?

172. A person travels a certain distance at 3 km/hr and reaches 15 mi late. If he travels at 4 km/hr reaches 15 min late. If he travels at 4 km/hr reaches 15 min earlier. The distance he has to travel is -

173. The percentage profit earned by selling an article for TK. 1920 is equal to the percentage loss interest by selling the same article for Tk 1280 . At what price should the article be sold to make 25% profit?

174. A takes twice as much time as B or thrice as much time as C to finish a piece of work Working together, they can finis the work Working together , they can finish teh work in 2 days . B can do the work alone in -

175. Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:

176. $If \left(\frac{1}{5}\right)=0.008,then find{(0.25)}^y=?$

177. If two non-zero positive integers p and q are such that p=4q and p<8, then q=?

178. If x and y arenegative integers and x-y=1, what is the least possible value for xy?

179. If a.b,c are the lengths of the sides of a traiangle, then which of the following is true?

180. Which is the correct factor analysis of $x^2-2xy-z^3+2yz?$

181. One fifth of a number is eual to 5/8 of another number, it becomes four times of the second number. The second number is -

182. What is the sum of two consecutive even numbers the difference of whose squares is 84

183. IF $\frac{Q}{P}=\frac{1}{4}what is the value of\frac{p+Q}{p-Q}?$

184. If one star equals four circle and three circles equal four diamonds, then what in the ratio of star to diamond?

185. What will be the differemce between simple and compund interest at 10% on a sum of TK. 500 fter 5 years?

186. How many degrees does a minute hand move in 20 minutes?

187. P is a point lying on the line segment AB. Which of the following relation is applicable for all time?

188. $If x^{-3}-0.001=0,find x^2=?$

189. If selling price is doubled, the profit triples, Find the profit percent.

190. If the ratio of two numbers is 3:3 and their L.C.M is 84, then find the greater number.

191. In a simultaneous throw of two dice what is the probability of getting a doublet?

192. Afte getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5% fins the first discount?

193. If x-y=3 then what is the value of $x^3-y^3-9xy?$

194. What is value of $\frac{0.001}{0.1\times 0.1}$

195. A garden has to plant tress in rows containing equal number of trees. If he plants in rows of 6,8,10 or 12. then five tress are ledt unplated. But if he plants in rows of 13 tress each, then no tress is left. What is the number of tress that the gardener plants?

196. A library has an avearage of 510 visitors on Sunday and 240 on other days. What is the average number of visitors per day in the month of June beginning with a Sunday?

197. By elling a bicyle for Tk. 2850, as shopkeeper gains 14%. If profit is reduced to 8%, then the selling price will be:

198. $If x=7-4\sqrt{3} then find value of$ $(x+\frac{1}{x})?$

199. An iron rod that weight 24 kg is cut is cut into two pieces so that one of these pieces weight 16 kg and is 34 m long. If the weight of each piece is proportional to its length, how longis the other piece?

200. Given that $1^2+2^2+3^2.....+{10}^2=385,what is the value of$$3^2+6^2+9^2+.....{30}^2?$

201. What is the length of Bangabandhu Tunnel?

202. The volume of a rectangle with length. breadth, and height as $5x,3x^2 and 7x^4$

203. How many positive integers less than 100 are neithe multiples of 2 or 3.

204. $If x^2+\frac{9}{x^2}=31,what is the value of\frac{x-3}{x}?$

205. A certain class is divided into two section A and B of equal numbr of students. If the ratio of girls to buys for whole class is 3/5 and the ration of girls to boys in section A is 5/7. What is the ratio o fgirls to biys in section B?

206. M men agreed to prchase a gift for Tk D. If 3 men drop out, How much more will each have to contribute toward the purchase of the gidt?

207. Equal amounts of water were proured into two empty jars of different capacities, which made one jar 1/4 full and the other jar 1/3 full . If the water in the with the lesser capacity is then poured into the jar the greater capacity, What fraction of the larger jar will be filled with water?

208. One doxen eggs and ten pound of apple are currrently of same price. If the price of a dozen agges rises by 10% and that of apples rises by 2%, how much more will it cost to buy a dozen of eggs and ten punds of apples?

209. A, B and C enter into partnership with investment in the ration of 5:7:8. If at the end of the year A's share of profit is Tk. 42360,how much is the total profit?

210. The three rational numbes between 3 ans 4 are:

211. The diameter of the base of a cone is 10.5 c,. and its slant height is 10 cm. The curved surface ares is:

212. The surface area of hollow cylinder with radius 'r and height 'h' is measured by-

213. One third of the Faculty membes of a department are female. Sixteen of the male teachers are unmarried. While 60% of them are married, The total number of faculty members in the department is-

214. Two buses start from a bus terminal with speed of 20 km/h at interval of 10 minutes. What si the speed of a man coming from the opposite direction towards the bus terminal if he meets thebuses at interval of 8 minutes?

215. The number of student in 3 classes is in the ratio 2:3:4 if 12 students are increased in each class this ratio changes to 8:11:14. The total number of students in the three classes in the beginning in the three classes in the beginning was:

216. The price of raw meterials had gone up by 15% labor cost has also increased from 25% of the cost of ras material to 30% of the cost of raw material. By how much percentage should there be reduction in the usage of raw materials so as to keep the cost same?

217. A sum of miney amounts to Tk 9800 after 5 years and Tk. 12005. after 8 years at the same rate of simple interest. The rate of interest per annum is.

218. The hypotenuse of a right triangle is 2 centimeters more than longer side of the traiangle is 7 centimeters less than the longer side. Find the length of the hypotenuse.

219. A boat sailing against a stream of river takes 6 hours to travel 24 kms while sailing with thestream it takes 4 hours to travel the same distance. What is the speed o fthe stream?

220. In triangle ABC, If Ab= BC and ∠B = $70°$ ,$\angle A will be$

221. The solution of equation x-2y=4 is:

222. $2\sqrt{3} +\sqrt{.3} =$

223. A fair coin is flipped three times. What is the probality that coin lands head each time?

224. In a certain class consisting of 36 students , some boys and some girls exactly 1/3 of the boys and exactly 1/4 of the girl walk to school. what is the greatest class who walk to school?

225. If a =.67 then whoch one of the following is smaller than a ?

226. A rectuangle is 14 cm long and 10 cm wide . If the length is reduces by x cm and its width is increade also by x cm so as to make a squre , then its area increased by-

227. $A^3 is odd, which if the following$ is true?

228. If the radius of a circle is 6 cm and a circular segment subtens an angle angle

229. Mr X will be the Chairman of the committee . In how many ways can a committee of 5 member be chosen from a total o f8 people given that Mr. Z must be one them?

230. If the ration of numbers is 3: 4 and their least common multiple is 60 , then their least common multiple is 60, then the numbers are-

231. A product is bougth ans sold at he profit of 15% the ratio of selling ans buying cost is

232. If a ladder touches the roof of a wall and makes an angle of $40°$ with the 15 metre ling wall , then the length of the ladder is-

233. The difference between simple and compound intert at 5 % annually on a sum of TK. 10000 at the end of 2 years

234. $If a=0.67 then which one of the followng is smaller than a?$

235. The next term of the series 9+36+81+144+ ------is

236. $If the line AB and CD meet at O and$$\angle BOS=60$

237. $If \left(7^a\right)\left(7^b\right)=7^c{7}^d,$ w $what is d in term of a,b and c?$

238. Let M be the median and m the mose of the following set of numbers : 10,70, 20,40 ,90 . What if the average ) arithmeti mean of M and m?

239. If the sum of x and its multiplicative inverse is 3 , then $x^3+\frac{1}{x^3}=?$

240. If $cos\theta + \sin \theta =1,then\theta =?$

241. A coin is tossed four times ... What is the probability of getting heard on all tosses?

242. How many real roots does the polynomial $2x^3+8x-7 have?$

243. If 3x +2y=7 and 3x-2y=5 then xy =?

244. The HCF of $x^2-1,x^4-1,and x^4+x^3+x-1 is-$

245. The next number in the sequence 1,2,3 5,8,13, 21 ,------ is-

246. Which of the number below is not equivalent to 2%?

247. If n is an odd integer, which of the following must be an odd integer?

248. How many integers between I and 100 are divisible by 3 but not by 5?

249. IF the radiud of a sphere is increaded by 10% , how much will the surface area be increaded in ercentage?

250. The area of a circle of radius √2 is approximately-

251. The distance from the centre of a cirle of radiud 5 cm o a chord of lengh 8 cm-

252. If -1 ≤ 3 -2x ≤3, then

253. $If {\log }_{x}144=4,then x=?$

254. $If \tan (x-30°)=1/\sqrt{3},cox=?$

255. বাংলাদেশ ক্রিকেট ওয়ানডে স্ট্যাটাস লাভ করে কত সালে?

256. Sustainable Development Goal (এসডিজির লক্ষ্যমাত্রা কতটি?)

257. ছয়দফা দাবি কত সালে উত্থাপিত হয়?

258. সমবাহু ত্রিভুজের প্রতিটি কোণের মান কত?

259. বৃত্তের কেন্দ্রগামী জ্যা-কে কি বলে?

260. ${(x+y)}^2-{(x-y)}^2=?$

261. একটি ত্রিভুজের ভূমি ও উচ্চতা যথাক্রমে ৪ সেমি ও ৭ সেমি। ত্রিভুজের ক্ষেত্রফল কত?

262. একটি বর্গক্ষেত্রের পরিসীমা ৪০০ মিটার। এর ক্ষেত্রফল কত?

263. কোন চতুর্ভূজের বিপরীত বাহুদ্বয় সমান ও সমান্তরাল এবং কোণগুলি সমকোণ নয় তাকে কি বলে?

264. $a^2+b^2$= ?

265. a+b = 7 এবং ab = 10 হলে (a -b) = কত?

266. কোন সংখ্যাকে ৪, ৫, ৬ দ্বারা ভাগ করলে ভাগশেষ ৩ হয়?

267. ০.১ × o.o১ × o.০০১= কত?

268. বার্ষিক ৭% হার সুদে ১৮০০ টাকার ৬ বছরের সুদ কত?

269. ১ ডজন ডিমের দাম ৫৪ টাকা হলে ৪৫ টাকায় কয়টি ডিম পাওয়া যাবে?

270. একটি ঘড়ি ৫৬০ টাকার বিক্রয় করায় ২০% ক্ষতি হয়। ঘড়িটির ক্রয়মূল্য কত?

271. নিচের সংখ্যাগুলোর মধ্যে কোনটি ক্ষুদ্রতম?