A train traveling at 70 km/h crosses another train traveling in the same direction at 34 km/h in 25 seconds. What is the combined length of both the trains (in metres)?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 250.
Speed of first train = 70 km/h
Speed of another train = 34 km/h
Both trains crossed each other in 25 seconds
Relative speed = Speed of first train - Speed of second train
Distance = Speed × Time
Let the length of the first train be X
and the length of the second train be Y
According to the question
⇒ X + Y = (70 - 34) × 25 × 5/18
⇒ 125 × 36/18 = 250 meters
Hence, the total length of the trains is 250 meters.