A man is walking at the rate of 7 km/hr crosses a bridge in 15 minutes. The length of the bridge is	Choose the correct choice from the following:  A) 1000 meters  B) 1050 meters  C) 1200 meters  D) 1750 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=7âˆ—5/18=35/18m/sec   Time=15âˆ—60seconds=900seconds   1750 metersistance=Timeâˆ—Speed/1750 metersistance=35/18âˆ—900=1750meter   Option 1750 meters
<result>D</result>
A man is walking at the rate of 7 km/hr crosses a bridge in 15 minutes. The length of the bridge is