Question

a train moves at a speed of 15 m/s. what is its speed in km/h
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Answer 1

Answer:

15*5/18=75/18 km/h.....

Answer 2

Answer:

give thanks

Step-by-step explanation:

As we know that

Speed= distance/time

Or time = distance/speed

According to your question

Speed=15m/s

and. Distance=1.2km. ,we must change kilometer in meter because given speed is in m/s

D= 1.2km = 1.2×1000m =1200meter

Time = distance/ speed

1200/15 =80second

Or. 1min and 20 sec will be your answer.