Two buses start from a bus terminal with a speed of 20 km/h at interval of 10 minutes. What is the speed of a man coming…

A person travels equal distance with speeds of 3 km/hr, 4 km/hr and 5 km/hr and taken a total time of 47 minutes. The to…

A 6 × 6 grid is cut from an 8 × 8 chessboard. In how many ways can we put two identical coins, one on the bl…

The speed of a motor-boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 mi…

Train A travelling at 60 km/hr leaves Mumbai for Delhi at 6 pm. Train B travelling at 90 km/hr also leaves Mumbai for De…

Two persons A and B started from two different places towards each other. If the ratio of their speed be 3 : 5, then wha…

A certain distance is covered by a cyclist at a certain speed. If a jogger covers half the distance in double the time, …

Ashok left from place A for place B at 8 am and Rahul left place B for place A at 10.00 am the distance between place A …