Question
A train 120 m long runs at 54 km/h. It passes a pole in
8 seconds. In how many seconds will it pass a platform of length 180 m?Solution
Speed = 54 km/h = 54 × (5/18) = 15 m/s Time to pass pole = length/speed = 120/15 = 8 s (consistent). To pass platform, distance = train length + platform length = 120 + 180 = 300 m Time = 300 / 15 = 20 s
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