Question

a train travels 20 km in 15 minutes what is its speed​

Answer 1

Answer:

Actual speed of train = 80km/hr. On stopping this reduces to 60km/hr. That is it loses 20km worth of time. For traveling 20km the train takes 20/80 hrs = 15 minutes.

Answer 2

Explanation:

Speed= Distance/time

Distance travel =20 km

Time travel = 15 min

We know that,

1 min= 60 sec

There will 15/60

=1/4

20/1÷4

=20/4

= 9 .