3. A bridge is 500 m long. A 100 m long train crosses the bridge at a speed of 30 m/s Find the time taken by the train to cross it.
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20 Seconds.
see-- when Train will cross bridge it will cross own length also... and it will yhen cross 500+100=600m in 30m/s. Then By Distance formula time= D/S ---- 600/30 = 20 Seconds ans.
see-- when Train will cross bridge it will cross own length also... and it will yhen cross 500+100=600m in 30m/s. Then By Distance formula time= D/S ---- 600/30 = 20 Seconds ans.
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