railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Speed Time and Distance Partial Speed
A train of length 300 metres, travelling at a speed of 54 km/hr crosses a signal tower at a certain time. How much should its speed be increased so that it may take 5 seconds less than its usual time?
1
5 m/sec
2
10 m/sec
3
16 m/sec
4
25 m/sec