Increasing the original price of an item by 10% , then decreasing by 20% and then again increasing the price by 10% is equivalent.

The sum of principal and simple interest of a certain amount of money would be Tk. 460- after 3 years from now...

The sum of principal and simple interest of a certain amount of money would be Tk. 460 after 3 years form now...

The ratio betwwn the perimeter and the breadth of a rectangular is 5:1. If the area of the rectangle is s216 W...

An article when sold at a gain of 5% yields Tk. 15 more than when sold at a loss of 5% . Its cost price would...

If for integer x, 5

A water tank has two taps (Tap-1 and Tap-2) . Tap -1 can fill a tank in 8 hours and Tap-2 can empty the tank i...