1. If (a+a+a)= (b+b+b+b) and (a+b)=7, then what is the value of $(a^2-b^2)?$

2. If p and q are positive integers, each greater than 1, and if 37 (p-10 =29 (q-1), what is the least possible value of (p+q)?

3. The population of a metropolitan city doubled every 8 years from 1975 to 1999. what was the percentage increase in population during this time?

4. One day at a school, one -twelfth of the students were absent and 20% of those present went on a field trip. If the number of students staying back in the school that day was 660, how many students are enrolled at that school ?

5. Zakir plans to visit an Art gallery once in every month of 2011 except for November and December when he plans to visit three times in each of those months. A single admission costs Tk. 5.50 , a pass valid for unlimited visits in any 3-month period can be purchased for Rk 27 , and annual pass costs Tk 80. what is the least amount that Zakir can spend for his intended number of visits?

6. a salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20% while his sales increase by 10% what is the ratio of this new profit to his usual profit?

7. 2 large and 1 small pumps can fill a water tank in 4 hours. 1 large and 3 small pumps can also fill the same water tank in 4 hours . How many hours will it take for 3 large 4 small pumps to fill the tank?

8. what is the product of all the numbers in the dial of a telephone?

9. A tailor had a number of shirt pieces to cut from some large pieces of fabric. He cut each large piece into 10 smaller pieces. He cut at the rate of 45 cuts per minute . How many large pieces would be cut in 24 minutes?

10. There are deer and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs is 200. How many peacocks are there?

11. At a dinner party , every two guests shared a bowl of rice between them , every three guests shared a bowl of vegetable among them and every four shared a bowl of meat among them . There were altogether 65 bowls. How many guests were present at the party?

12. In a cricket match , five batsmen A, B, C, D and E scored an average of 36 runs. D scored 5 more than E, E scored 8 fewer than A, B scored as many as D and E combined, and B and C jointly scored 107. How many runs did E score?

13. In a garden , there are 10 rows and 12 columns of trees . The distance between any two trees is 2 m and a distance of 1 m is left from all sides of the boundary of the garden . What is the length of garden?

14. A is 3 years older than C. B and D are twins. How older is c than D?

15. A woman says, "If you reverse the digits my age, the figures represent my husband's age. He is senior to me and the defference between our ages is one-eleventh of their sum. "What is her age now?

16.

According to the given data how many more employed were there in 1990 than in 2000?

17. what is the value of "n" if (8-3) (8-n) = 40?

18. In a school the ratio of boys to girls is 3 to 7 . If the total student is 150 then how many boys are there?

19. A restaurant meal costs taka 35.50 and there was no tax . If the tip was more than 10% and less than 15% of the cost of the meal then the total amount paid must have been between --

20. The angles of triangle of a triangle are in the ratio 2 : 3: 4. the largest angle in the triangle is:

21. How much interest will taka 2,000 earn at an annual interest rate of 8% in one year if the interest is compounded every six month?

22. 20% of 0.2 is -

23. A person wishes to accumulate taka 150,000 by the end of 15 years by making equal half -yearly deposits over the next 15 years. If he/she earns 10% on the investment , how much must he/she deposit at the end of each half year?

24. A cake is divided into 18 pieces.If Rehana takes 1/3 of the cake and Rahim takes 1/3 of the cake left , how many pieces are left?

25. If taka 45000 was invested in a share when the price per share was taka 90 and taka 3000 was invested when the price per share was taka 60, what was the average price per share purchased?

26. 40% of 200 is what percent of 160?

27. An item is sold for taka 65, giving the retailer a profit of 30% of the cost. What will be the new retail price if the retailer cuts his profit to 10% costs?

28. which of the following is bigger than value of 2/3?

29. what is the next number in the series 1 , 4 , 9 , 16..........

30. You deposited dolor 124 in a bank with an interest rate of 2% each year. If they offer a simple interest rate, what will be you balance after 9 years?

31. The difference between two numbers is 7 and their product is 60. One of the two numbers must be ---

32. A man's age is now 3 times his son's age. Eight years back, the man's age was 5 times his son's age. what is the present age of the son?

33. If 2x - 1 =9 , then what is the value of 10x -5 ?

34. In a class their are 35 boys and 63 girls . Find out the ratio of boys to girls.

35. If 25% of 220 equals 5.5% of w, then w is--

36.

ABCD has area equal to 28 . BC is parallel to AD. BA is perpendicular to AD. If BC is 6 and AD is 8, then what is CD?

37.

Find the area of the trapezoid ABCD. AD=CD=5 BC=10, AD=16, and BE is An

38. $\sqrt{(42-6)(25+11)}$

39. Ground oats, wheat bran, linseed meal, and ground barly are mixed b weight in the ratio of 10:6:2:2 respectively. How many ton of wheat bran is there in 15 tons of the mixture?

40. If a, b, and consecutive positive integers and a

41. If membership in the Elks Club increases from 120 to 150, what is the percent increase?

42. Nine pieces of paper numbered consecutively from 1 to 9 are put into a hat. If one piece of paper is drawn at random from the hat, what is the probability that will have an even number?

43. If 6x-4=5x+3, then x=

44. A school district has 1,989 computers, which is approximately one computer for every 68.6 students. Of the following, which is the closest approximation, in thousands, of the number of students in the school district?

45. What is the remainder when 63 is divided by 8?

46. If y=3x and z =2y, then in terms of x, x+y+z=

47. When walking a certain person takes 16 complete steps in 10 seconds. At this rate, how many complete steps does the person take in 72 seconds?

48. 42 is what percent of 70?

49. Which of the following equations can be used to find the value of if 8 more than 9x is 3 times the sum of 6 and x?

50. 52.68*1/100=