A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
Explanation
Speed = | ![]() |
300 | ![]() |
m/sec = | 50 | m/sec. |
18 | 3 |
Let the length of the platform be x metres.
Then, | ![]() |
x + 300 | ![]() |
= | 50 |
39 | 3 |
3(x + 300) = 1950
x = 350 m.