Two train of length 125 meter and 175 meter in the same direction at 40 km/h and 22km/h respectively.In what time they completely pass each other?
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Step-by-step explanation:
Total distance= 125+175=300
Total speed=40-22=18km/hr
=18*5/18=5m/s
time =distance/speed
t=300/5
t=60s
t=1min.
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