The average of x and y is 20. If z = 5 , what is average of x, y and z?
The smallest prime number greater than 20 is
If the average of 5 consecutive integers is 12 , what is the sum of the least and the greatest of the integers?
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?
If p and q are integers and (pq-p) is odd, then which of the following must be even?
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?
If m=(-8)4and n= (-8)7, then
If x =2y+3 and y=-2, then
If x +2y > 8 , then 2x + 4y is