RRB NTPC · Question 26
A train leaves Bangalore railway station at a speed of 80 km/hr for Mumbai. After 1 h another train leaves Bangalore railway station for Mumbai at a speed of 100 km/h. How many hours, will the second train take to meet the first train?
Show answer & explanation
Answer: (C) 4 h
Explanation
The first train is 80 km ahead after 1 hour. The second gains 100 − 80 = 20 km/h, so it catches up in 80/20 = 4 hours.