Question

a train runs at the rate of 45 km an hour what is it's speed in mater's per second

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Answer 1

Step-by-step explanation:

64 seconds.

for 45 kms time taken is 1 hour or say 3600 seconds.

therefore time taken to travel 1 km is 80 seconds,

hence for 4/5th of a km, time taken is 64 seconds

Answer 2

64 seconds.

for 45 kms time taken is 1 hour or say 3600 seconds.

therefore time taken to travel 1 km is 80 seconds,

hence for 4/5th of a km, time taken is 64 seconds