A thief, pursued by a policeman, was 100 m ahead at the start. If the ratio of the speed of the policeman to that of the…

If a man runs at 6 kmph from his house, he misses the train at the station by 8 min. If he runs at 10 kmph, he reaches 7…

A train 100 m long is running at the speed of 30 km/hr. The time (in second) in which it passes a man standing near the …

Train X leaves New York at 1 am and travels east at a constant speed of x mph. If train Z leaves New York at 2 am and tr…

The average speed of a train in the onward journey is 25% more than that in the return journey. The train halts for one …

A railway passenger counts the telegraph poles on the rail road as he passes them. The telegraph poles are at a distance…

Two ports A and B are 300 km apart. Two ships leave A for B such that the second leaves 8 hours after the first. The shi…

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…