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Q.
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 ?
A.
48
B.
52
C.
38
D.
42
View Answer
Correct choice: A
Explanation:
Here distance d = 800 mts speed s = 63 - 3 = 60 kmph = 60 x 5/18 m/s time t = 800x18/60x5= 48 sec.
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