Chandigarh express of 100 m runs at a speed of 60 km hr What will be the time taken to cross a platf...........

Quantitative Aptitude ( CCS) Time & distance

Chandigarh express of 100 m runs at a speed of 60 km/hr. What will be the time taken to cross a platform of 150 meters long?

11.00 sec

12.50 sec

15.00 sec

15.23 sec

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Explanation:

Length of train = 100 m, speed of train = 60 km/hr, length of platform = 150 m
1) Always remember first step is the conversion of units.
Convert 60 km/hr into m/s by multiplying it with (5/18)

speed of train = 5/18 * 60 = 16.66 m/s
Distance covered by the train in passing the platform = (Length of train + Length of platform) = (100 + 150) = 250 m
Therefore, time taken = distance /speed

250/16.66 = 15 s

Hence, option 3 is the correct answer.