A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in metres) is  Pick:
A) 600  B) 750  C) 1000  D) 1250  E) None of these
Explanation:   speed = (5 × 5/18)m/sec   = 25/18 m/sec.   Distance covered in 15 minutes = (25/18 × 15 × 60)m   = 1250 m.   Answer: 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