A man is walking at the rate of 6 km/hr crosses a bridge in 15 minutes. The length of the bridge is
Choices:
A) 1000 meters
B) 1050 meters
C) 1200 meters
D) 1500 meters
E) None of these
Explanation:   We need to get the answer in meters. So we will first of change distance from km/hour to meter/sec by multiplying it with 5/18 and also change 15 minutes to seconds by multiplying it with 60.   Speed=6âˆ—5/18=5/3m/sec   Time=15âˆ—60seconds=900seconds   1500 metersistance=Timeâˆ—Speed/1500 metersistance=5/3âˆ—900=1500meter   Option 1500 meters
<result>D</result>
A man is walking at the rate of 6 km/hr crosses a bridge in 15 minutes. The length of the bridge is