A train, 700 m long crosses a pole in 35 seconds. How much time does it take to cross a platform of length 740 m?

1 min 12 sec

Length of train = 700 m

Time taken to cross a pole = 35 seconds

Speed of train = \(\frac{Distance}{Time}\)

= \(\frac{700}{35}\) = 20 m/sec

Time to cross bridge ,

Total distance = 700 + 740 = 1440 m

Time = \(\frac{Distance}{Speed }\)

= \(\frac{1440}{20}\) = 72 seconds

= 1 minute 12 seconds