Water flows into an empty 64-gallon drum through pipe A and flows out through pipe B. If the rate of flow through A is 2 gallons/hour, how many gallons per hour must flow out through pipe B so that the drum is full in exactly 96 hours?

How much interest will Tk. 2,000 earn at an annual interest rate of 8% in one year, if the interest is compoun...

A field is rectangular and its width is 1/3 as long as its length. What is the area of the field if the length...

If the length of a rectangular is increased by 20% and the width is decreased by 20% then the area.

If Salam makes a box every 5 minutes and Kalam takes 7 minutes to make a box, what will be the ratio of the nu...

A club has 8 male and 8 female members, the club is choosing a committee of 6 members. The committee must have...

Point X is North of point Y , which is East of point Z. To which direction is point X with respect to point Z...