A train 1200m long crosses a platform in 1.5 min at a speed of 54 kmph . what is the length of the platform
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Let length of platform = P m
we know,
distance = speed × time
here,
time = 1.5 × 60 sec = 90 sec
speed = 54 × 5/18 = 15 m/s
distance = (1200 + P) m
1200 + P = 15 × 90
1200 + P = 1350
P = 150 m
hence, Length of platform = 150 m
we know,
distance = speed × time
here,
time = 1.5 × 60 sec = 90 sec
speed = 54 × 5/18 = 15 m/s
distance = (1200 + P) m
1200 + P = 15 × 90
1200 + P = 1350
P = 150 m
hence, Length of platform = 150 m
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