SOLUTION: two trains 120m & 80m in length are running in opposite direction with velocities 42kmph and 30kmph. In what time will they will completely cross each other?
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Question 815729: two trains 120m & 80m in length are running in opposite direction with velocities 42kmph and 30kmph. In what time will they will completely cross each other? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! Add the lengths of the trains = 200 = 0.2 km
add the speeds of the trains = 72
t= d/r
=0.2/72 hours
=0.00278 hours
=0.00278*3600
=10 seconds
