Two trains 120 m and 100 m are traveling in the opposite direction at a speed of 42 km/h and 30 km/h. at what time will the cross each other completely
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1
Answer:
It needs 11 seconds to cross each other......
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Explanation:
d1= 120m ; d 2 = 100 m
v1= 42 kmph; v2 =30 kmph
t1=? ;t2 =?
t = d/t
t1 = 120 / 42 = 2 hr 53 min
t2 = 100/30 = 3 hr 20 min
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