Civil Services UPSC EPFO (APFC) Mock Test 2023 Quantitative Aptitude Speed Time and Distance Problem on Trains
The time taken by a train to cross a man travelling in another train is 10 seconds, when the other train is travelling in the opposite direction. However, it takes 20 seconds, if both the trains are travelling in the same direction. The length of the first train is 200 m and that of the second train is 150 m. What is the speed of the first train ?
1
60 km/hr
2
56 km/hr
3
54 km/hr
4
52 km/hr