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১. If m= ${(-8)}^{4 }$ and n= ${(-8)}^7$ , then

২. If x =2y+3 and y=-2, then

৩. The share price of a bank reduced by 5% on January 16th , but increased by 10% the next day. what was the overall rate of loss or gain?

৪. If p and q are integers and (pq-p) is odd, then which of the following must be even?

৫. In a certain shop, notebooks that normally sell for BDT 1.50 each are on sale at 2 for BDT 2.89 . How much can be saved by purchasing 10 of these notebooks at the sale price?

৬. If the average of 5 consecutive integers is 12 , what is the sum of the least and the greatest of the integers?

৭. The smallest prime number greater than 20 is

৮. The average of x and y is 20. If z = 5 , what is average of x, y and z?

৯. If p = the number of months in 7 years and q = the number of days in 12 weeks

১০. If x +2y > 8 , then 2x + 4y is

১১. In a college, 45% of the students are boys.If 40% of the boys and 20% of the girls went on a picnic, what percentage on the total students went to the picnic ?

১২. At a particular moment, if the angle between the hour and the minute hand of a clock is 105% what was the time by the clock at that time?

১৩. A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 percent larger than the original . By what percentage has the area of the logo increased?

১৪. If the average of 7 , 13 , p , and q is 17 , what is the average of ( p +1) and (q -9) ?

১৫. On Tuesday, 30 of the students in a class took a test and their average score was 83.5 . On Thursday , the other 5 students took the test, and their average score was 94. what was the average for the entire class?

১৬. Baki lives 2 miles west of Raju's house . Rafiq lives 3 miles of Raju's house and 2 miles west o Diba's house. what is the straight-line distance from Baki's house to Diba's house?

১৭. Two numbers A and B are such that the sum of 5% A and 4% of B is two - third of the sum o f 6% A and 8% of B. what is the ratio of A and B.

১৮. A bicycle has two wheels of 120 cm and 40 cm in diameters. when the large wheel makes 10 revolutions , how many revolutions does the small wheel make in that time?

১৯. A ferry, when empty , travels twice as fast as when it is full. It travels 20 miles south with a cargo, spends 30 minutes for unloading , and returns to its original port empty in a total of 8 hours , what is the speed of the ferry when it is empty?

২০. If x = 2y =3z and xyz =36 , what is the value of z?