AbhijitVatsyayan AbhijitVatsyayan

15-08-2020
Mathematics

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a train 200 m long took 12 second to pass in 90 long tunnel. Find the speed of the train

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15-08-2020

Total distance =(250+90)n
=300 m
time =12 sec
speed time/distance

speed = 12/300
speed =25 sec

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