A 250 metres long train running at the speed of 120 kmph crosses another train running in opposite ...
A 250 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?
Answer/Solution
250 m
Steps/Work
Relative speed = (120 + 80) km/hr
= (200 x(5/18))m/sec
= (500/9)m/sec.
Let the length of the other train be x metres.
Then, (x + 250)/9 = 500/9
x + 250 = 500
x = 250.
C
= (200 x(5/18))m/sec
= (500/9)m/sec.
Let the length of the other train be x metres.
Then, (x + 250)/9 = 500/9
x + 250 = 500
x = 250.
C