1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# A man sees a train passing a bridge 1 km long. The length of the train is half that of the bridge. If the train clears the bridge in 2 minutes, find the speed of the train in km/hr.

A
35 km/hr
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
B
40km/hr
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
C
45km/hr
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
50km/hr
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
Open in App
Solution

## The correct option is C 45km/hr According to the given condition The total distance that needs to be covered by the train to cross the bridge =12+1 =1+22 = 32 km Given that the time taken = 2 minutes when converting into hour we have 260=130 hr If the distance covered by the train = x km we have Distance covered time taken32kms 130hrx km 1hr Cross multiplying we have 32×1=x×130 32=x30 45=x Hence the speed of the train = 45 km/hr

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Questions on Ratio and Proportion
MATHEMATICS
Watch in App
Join BYJU'S Learning Program