150
A
A train of length 1200 m crosses a pole in 40 sec. then speed in km/hr = ?
30 km/hr
(2 72 km/hr
3 96 km/hr
4 108 km/hr.
350000 with 3% broke
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0
Answer:
108 km/hr
Step-by-step explanation:
speed = distance / time
distance=1200m
time=40 sec
speed= 1200/40=30m/s
the ans is in meter per sec and the option is in km per hr. so we change 30 meter per sec into km per hr. so we have to multiply 30 m/s with 18/5
30*18/5=108km/hr
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