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11. Two trains are moving in opposite directions at the speed of 50 and 70 km. per hour . Their lengths are 150
m and 100 m. What is time required for their crossing each other thi
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Step-by-step explanation:
The combined speed of the Trains= (50+70)= 120- Km/ h= 120 x 5/18 =100/3 = 33.33 m/sec.
Distance travelled = (150+100)= 250.
Time taken= Distance/Speed = 250/(100/3) = 7.5- seconds.
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