In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race A can beat C by:

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 -

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

Devesh can cover a certain distance in 1 hour 24 minutes by covering two-third of the distance at 6 km/hour and the rest at 7 km/hr. Calculate total distance.

A 200 m train at 90 km/h overtakes a 250 m train at 60 km/h in same direction. Time?

A train 200 m long runs at 45 km/h. Time to cross a 100 m long tunnel?