A ball and a bat costs 110 taka. The bat costs 100 taka more than the ball. How much does the ball cost ?

In a certain store, the profit is 320% of the cost. If the cost increases 25% but the selling price remains co...

What percentage of numbers from 1 to 70 has 1 or 9 in the unit's digit?

The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq....

The average weight of 8 people increases by 2.5 kg when a new person comes in place of one of them weighting 6...

Mr.khan invested an amount of TK. 13,900 divided into two different schemes A and B at a simple interest rate...

A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4- digit number 13b7, which is divisible...