Three taps A, B and C can fill a tank in 12,25 and 20 hours respectively. If a is open all the time and B and C are open for one hour each alternately, the tank will be full in :

The ratio between the length and the perimeter of a rectangular plot is 1:3. What is the ratio between the len...

The difference of two numbers is 20% of the larger number. If the smaller number is 12 the larger one is :

An amount of Tk. 735 was divided between A, B and C. If each of them had received Tk 25 less, their shares wou...

100*10-100+2000/100=?

If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to :

If the simple interest on a sum of money for 2 years at 5% per annum is Tk. 50. What is the compound interest...