If the compound interest on a sum for 2 years at 12.5% per annum is TK. 510 the simple interest on the same at the same rate for the same period of time is :

0.01 is what percent of 0.1 ?

Sixty-five percent of a number is 21 less than four-fifth of that number. What is the number ?

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...

An express train travelled at an average speed of 100 km/hr, slopping for 3 minutes after every 75 km. How lon...

If 18 pumps can raise 2170 tonnes of water in 10 days , working 7 hours a day ; in how many days will 16 pumps...

To fill a tank , 25 buckets of water is required. How many buckets of water will be required to fill the same...