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ICSE Class 7 Answered

A train 260 m long running at 72 km/h, crosses a bridge 240 m long. Find the time taken by it.
Asked by saanvisanju25th | 10 Sep, 2020, 11:06: AM
Expert Answer
Total distance to be covered = 260+240 = 500 m
Speed of the train = 72 km/h = 72 x 1000 m/h = 72 cross times 1000 over 3600 space straight m divided by straight s equals 72 cross times 5 over 18 space straight m divided by straight s equals 20 space straight m divided by straight s
Time taken to cross a bridge 240 m is equals 500 over 20 space straight m divided by straight s equals 25 space straight m divided by straight s
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