defence exam CISF Constable Driver 2025 Quantitative Aptitude Speed Time and Distance Problem on Trains
A train, 180 m long, passes a pole in 18 seconds and crosses another train of the same length travelling in the opposite directions in 12 seconds. The speed of the second train is
1
10 m/s
2
12 m/s
3
20 m/s
4
16 m/s