Question

A train is 365 metres long. It travels 20 m/s. It takes 120s to pass a tunnel. How long is the tunnel?

Answer 1

Answer:

the tunnel is240 m long

Answer 2

Answer:

2035 m or 2.035 km

Step-by-step explanation:

Given:

Length of Train = 365 metres

Speed = 20 m /s

Time taken = 120 s

Length of Tunnel = ? m

Solution:

Assuming the given speed to be constant,

Distance covered by the train in 120 s at 20 m/s = 2400 m   [s=d /t]

Therefore, length of tunnel = Distance covered by train in given time - Length of train

=> 2400 - 365

=> 2035 m = 2.035 km

Hope it helps...

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