The speeds of three cars are in the ratio 2:3:4. The ratio between the time taken by these cars to travel the same distance is -

The speeds of four cars are 2u, 3u, 4u and xu and the time taken by them to cover the same distance is xt, 4t, 3t and 2t respectively, where x, u, t are real numbers. What is the value of x?

The distance between Delhi and Agra is 200 km. Suppose you are travelling from Delhi to Agra by a car. If you can maintain an average speed of 90 km/hr for 120 km and 40 km/hr for the remaining dista…

Two trains A and B started from stations P and Q respectively towards each other. Train A started at 7 p.m. at a speed of 60 km/hr and train B started at 4 a.m. (next day) at a speed of 90 km/hr. The…

If 30% of the distance is covered by A at 20 km/h and the remaining distance is covered at 70 km/h, then the average speed of A is :

Walking at the rate of 4 km/h a man covers a certain distance in 2 hours 45 min. Running at a speed of 16.5 km/h, the man will cover the same distance in