Question

Fastest way to solve this? NOT LOOKING FOR THE ANSWER with logical explanation please about how to solve it.

A train is going 72km/h (20m/s)

it's passing a 500m long tunnel and it took 30s

how long is the train? (600m)

Answer 1

Distance of Tunnel is 500 meters + Train travel rate is 20 meters per second = 25 seconds to pass through the tunnel only therefore the outstanding balance of 35 seconds x 20 meters per second =600 meters Train

Explanation:

Total of length of train 600 meters and tunnel (500 meters) is 1,200 meters +30 seconds = TR of 20 meters per second