Two tarins running in opposite direction cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is :

A tank has two leakages. The first leakage alone can empty the tank in 9 min and the second alone would have d...

The time taken by a man to travel 36 miles downstream is 90 min less than to go the same distance upstream . T...

A boat runs at 22 km per hour along the stream and 10 km per hour against the stream .Find the ratio of the sp...

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

By selling a bicycle for TK. 2,850,a shopkeeper gains 14% . If the profit is reduced to 8% ,then the selling p...