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How many seconds will a 800 meter long train moving with a speed of 63 km/hr take to cross a man walking with a speed of 3 km/hr in the direction of the train ?

Correct Answer: 48

Explanation:

Here distance d = 800 mts


speed s = 63 - 3 = 60 kmph = 60 x 5/18 m/s


time t = 800 x 18 60 x 5 = 48 sec.


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