A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in metres) is  Select:
A) 600 B) 750 C) 1000 D) 1250 E) 1500
Explanation:   speed = (5x5/18)m/sec   = 25/18 m/sec.   Distance covered in 15 minutes = (25/18 x 15 x 60)m   = 1250 m.   ANSWER IS 1250
<result>D</result>
A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in metres) is