RRB NTPC · Question 92
The distance between the two stations of Madhubani and Patna is 300 km. A train starts from Madhubani at 9 am with a speed of 30 km per hour towards Patna. Another train runs from Patna at 10 am towards Madhubani at a speed of 20 km per hour. What time will they meet each other? A. 4.24 p.m. B. 2.24 p.m. C. 3.24 p.m. D. 5.24 p.m.
Show answer & explanation
Answer: (A) C
Explanation
By 10 am the first train has covered 30 km, leaving 270 km. They then close at 30 + 20 = 50 km/h, taking 270/50 = 5.4 h = 5 h 24 min. They meet at 3:24 pm.