If Tk. 45,000 was invested in a share when the price per share was Tk. 90 and Tk. 30,000 was invested when the price per share was Tk. 60, what was the average price per share purchased?

A box contains 48 balls some red and some black. Each of the followings could be the ratio of red to black bal...

Of the followings, which is the largest?

If an integer Y is subtracted from an integer X and the result is greater than X, then Y must be ---

If 2x+7=12, then what is the value of 4x-7?

When a certain number is divided by 7, the remainder is O. But the remainder in not O if the number is divided...

Mr.Karim wants to put up fencing around three sides of his rectangular yard and leave a side of 10 feet unfenc...