state gov Bihar Police Prohibition Constable 2022 Mock Test Series Quantitative Aptitude Speed Time and Distance Problem on Trains
Two trains running in opposite directions with the same speed. If their lengths are 120 m and 140 m, and they cross each other in 10 s, find the speed of each train .
1
14 m/s
2
13 m/s
3
10 m/s
4
16 m/s