S = 600/50 = 12 mps
S = 3600/12 = 300 sec = 5 min
A 600 meter long train crosses a signal post in 50 seconds. How long will it take to cross a 3 kilometer long bridge, at the same speed?
Options:
1: 4 min
2: 2 min
3: 8 min
4: 9 min
5: 5 min