Problems on Trains

J&K Bank PO · Quantitative Aptitude · 82 practice questions with answers and explanations: 35 Easy, 47 Medium, 0 Hard.

Sample questions

Sample Easy question 1

A train 150 m long, running at 90 km/h, crosses a platform 250 m long. How many seconds does it take?

  1. 14
  2. 16
  3. 18
  4. 6
Show answer

Answer: B. Distance = 150 + 250 = 400 m; speed = 25 m/s; time = 400/25 = 16 s.

Sample Easy question 2

A train 120 m long crosses a pole in 8 seconds. What is its speed (in km/h)?

  1. 60
  2. 54
  3. 50
  4. 15
Show answer

Answer: B. Speed = 120/8 m/s = 15 m/s = 54 km/h.

Sample Easy question 3

A train running at 108 km/h crosses a pole in 12 seconds. What is the length of the train (in m)?

  1. 1296
  2. 340
  3. 380
  4. 360
Show answer

Answer: D. Speed = 108 × 5/18 = 30 m/s; length = 30 × 12 = 360 m.

Sample Medium question 4

A train 180 m long crosses a pole in 12 seconds. What is its speed (in km/h)?

  1. 60
  2. 54
  3. 15
  4. 50
Show answer

Answer: B. Speed = 180/12 m/s = 15 m/s = 54 km/h.

Sample Medium question 5

A train 200 m long, running at 90 km/h, crosses a platform 350 m long. How many seconds does it take?

  1. 24
  2. 22
  3. 8
  4. 20
Show answer

Answer: B. Distance = 200 + 350 = 550 m; speed = 25 m/s; time = 550/25 = 22 s.

Sample Medium question 6

Two trains 200 m and 150 m long run in opposite directions at 36 km/h and 54 km/h. How many seconds do they take to cross each other?

  1. 14
  2. 12
  3. 28
  4. 16
Show answer

Answer: A. Relative speed = 90 km/h = 25 m/s; time = 350/25 = 14 s.

More Quantitative Aptitude topics for J&K Bank PO

Related articles