A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. What is the length of the bridge (in metres)?
1250
1220
1350
1320
Explanation:
speed =5 km/hr
time =15 minutes
=1/4 hourLength of the bridge
= Distance travelled by the man in 15 minutes=5×1/4 km
=5×1/4×1000 metre
=1250 metre
speed =5 km/hr
time =15 minutes
=1/4 hourLength of the bridge
= Distance travelled by the man in 15 minutes=5×1/4 km
=5×1/4×1000 metre
=1250 metre