The ratio of three numbers is 3 : 4 : 7 and their product is 18144. The numbers are :

P and Q started a business investing Tk. 85,000 and Tk. 15,000 respectively. In what ratio the profit earned a...

A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same...

Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in ho...

An athlete runs 200 metres race in 24 seconds. His speed is :

How long does a train 110 metres long running at the speed of 72 km/hr take to cross a bridge 132 metres in le...

In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still wa...