a man walking @5km/hr,crosses a bridge in 15 mins.The length of the bridge is:
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Speed=5km/hr
Time=15 min = 1/4 hr
Distance=speed*time=5*1/4=5/4km=1.25km.
Time=15 min = 1/4 hr
Distance=speed*time=5*1/4=5/4km=1.25km.
sandy21:
thanks once again
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