state gov Kolkata Police Constable Mock Test 2024 Quantitative Aptitude Speed Time and Distance Problem on Trains
The lengths of the two trains are 80 meters and 90 meters respectively. If they run towards each other with speeds of 10 m/s and 7 m/s respectively, in what time will they cross each other?
1
20 seconds
2
15 seconds
3
17 seconds
4
10 seconds