The two trains cross each other in 12 seconds, moving in the opposite direction, and they take 60 seconds to travel in the same direction. both trains can have speed in (m/sec).

A train travels the distance between station P and Q at a speed of 126 km/h, while in the opposite direction it comes back at 90 km/h. Another train travels the same distance at the average speed of the first train. The time taken by the second train to travel 525 km is:

A crosses a rectangular field at a speed of 52 m / min along its diagonal in 15 seconds and B crosses the ground at the same time by walking at a speed of 68 m / min along its arms. The area of the field is

A truck is moving on the road. It makes 3000 revolutions in moving 3.96 km. What is diameter of the wheel of the truck?

Reshma covers 45 km at a speed of 15 km/h by bicycle, 80 km at a speed of 40 km/h by car, and another 6 km at a speed of 2 km/h on foot. Find her average speed for the whole journey (correct to 2 decimal places).

Walking at 5 km / h Harshit reaches his school from his house 15 minute early and walking at 3 km/h he is late by 9 minutes. What is the distance between his school and his house?

A gun is fired at a distance of 1.7 km from Ram and he hears the sound after 25 seconds. The speed of sound in meter per second is

Two trains are moving in the same direction at 75 km/hr. and 48 km/hr. The faster train crosses a man sitting in the slower in 14 second. Find the length of the faster train?