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18+9825. A train 360 m long is running at a speed of 45 km/m. What time will it taketo crosss a 140 m long tunnel?

Answer»

Speed = 45 Km/hr = 45*(5/18) m/sec= 25/2 m/secTotal distance = 360+140 = 500 meter

Time = Distance/speed= 40 seconds



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