Question

Running at a speed of 60 km per hour, a train passed through a 1.5 km long tunnel in two minutes, What is the length of the train ?

• A. 250 m
• B. 500 m
• C. 1000 m
• D. 1500 m

Answer 1

Answer:

B. 500 m

Let the length of the train be L Total distance = 1500 m + L Speed = 60(5/18) ⇒ 50/3 m/sec Time = 2 × 60 = 120 sec ⇒ 1500 + L = (50/3)× 120 ⇒ L = 2000 - 1500 ⇒ L = 500 m