A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in metres) is

600
750
1000
1250

Correct Answer: 1250

Explanation:

speed = (5x5/18)m/sec
= 25/18 m/sec.

Distance covered in 15 minutes = (25/18 x 15 x 60)m
= 1250 m.

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