A train 220 m long is moving at 45km/h. The time taken by the train to crosse tunned 260m long is-

A dog takes 3 leas for every 5 leaps of a hare. If one leap of the dog is equal to 3 leaps of the hare, the ra...

Asad went to the market to buy 12 oranges. But he found that he had the money to buy only 10 oranges. He calcu...

The ratio of the cost of two articles is 7:3 . The first one was sold at a loss of 20% and the second one was...

Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixtur...

A student's marks were wrongly entered as 83 instead of 63. Due to the error the average marks for the class g...

By mixing two qualities of pulses in the ration 2:3 and selling the mixture at the rate of Tk. 22 per kilogram...