Question

A train cover 51km in 3 hours. Calculate it's speed. How far does the train go in 30 minutes

Answer 1

speed = d*t
=51*3=153km/h

Answer 2

Answer :

At first, given that ;

Distance = 51 km

Time taken = 3 hours

Speed = ?

So, to find speed, divide the given distance by total time taken.

We have ;

Speed = Distance / time

Speed = 51 / 3

Speed = 17 km / hr.

So, now we have the speed of the train.

Second situation is that, How far does the train go in 30 minutes?

Here, we have

Speed = 17 km/hr

Time = 30 mins = 1 / 2 hr = 0.5 hr

Distance = ?

So, to find distance, multiply the resulted speed with time.

Distance = 17 × 0.5

Distance = 8.5 km

Hence, the train will cover a distance of 8.5 km in 30 minutes.