In Dhanmondi Lake the current flows at 3 kilometres per hour. The boatmen takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. In still water what is the speed of the boat?

Jonyh bought a shirt, a pair of pants and a pair of shoes , which cost Tk. 1,000 Tk. 2,000 , and Tk. 3,000 res...

In a village the growth rate of population is 5% every year . There are 1600 people in the beginning of 2008 ....

The surface area of a cubic box is 150 cm2. what is the volume of that box?

By how much is the value of {-10-(-7)} greater than the value of {-10 + (-7) }?

Tanveer earns Tk. 5.00 for every hour he works . Last weeks worked for x hours. He purchased y kg of rice. Pri...

If x5=243 , what is the value of x-3 ?