Time Speed Distance

The ratio of the speed of two trains is 7:8. If the second train covers 400 km in 4 h, find out the speed of the first train.

Peter and Beckon start to walk in the same direction together. If Peter's speed is 5 km/h and Beckon's speed is 6 km/h, find out the time duration after which they are 17 km apart if peter was 3 km behind Beckon at the time of starting.

If Mandeep can give a start of 50 m of distance or 10 s of time to Somesh in a race of 1000 meters and finish the race 10 seconds before Somesh. How much time Mandeep will take to cover the 1000 meters?

A train’s speed including stoppages, is 10 m/sec and 15 m/sec excluding stoppages. For how many seconds does the train stop per minute?

A boy takes 5 hours 45 min to walk from home to school come back by auto. He would have gained 2 hours by taking auto both ways. How much time would he take, to walk both ways?

Walking 3/4^th of his speed, a person is 10 sec late to his office. Find his usual time to cover the distance?

The speed of a child while going to school is 2 kmph and returns to the village at a speed of 3 kmph. If he takes 5 hrs in all, what is the distance between the village and the school?

A car completes a journey in 10 hrs, the first half at 11 kmph and the second half at 14kmph. Find the total distance covered?

A train covers a journey of 4 stations connected to form a square at speeds of 20, 40, 60 and 80 km/hr. What is the average speed of train for this journey?

A car covers a distance of 450m in 90 secs. What is the speed in km/hr?