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| 1. |
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? |
| Answer» 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. | |