Question

give the answer step by step with explanation fast ​

Answer 1

Answer:

40 minutes

Explanation:

1. Time taken by an express train to cover 10 metres = 1 second
2. Time taken by an express train to cover 40 metres = 40/10 = 4 seconds

Answer 2

Answer:

Your answer is 4 second

Explanation:

speed = 10 m/s

distance = 40 m

time = 40÷10 = 4 second