Question

A 200m long train crosses a 400m long bridge with a speed of 36km/h. Calculate the time taken by the train to cross the bridge

Answer 1

formula for time is
= distance / speed

length of train = 200m
length of bridge= 400m
total distance covered = 400+200 =600

according to the formula
time is
distance upon speed

=600÷10
=60 seconds
= as a minute contains 60 seconds
the answer is 1 minute .

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Answer 2

Answer: 1 min

Explanation:

Length of train = 200m

Length of bridge = 400m

Total distance = 200m + 400m = 600m

Velocity= 36km\h

             = 36*1000/3600

             = 10m/s

Time = distance/speed

        = 600/10

        = 60s = 1min