Vishwanath
Monday, February 18, 2013
50. | 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?
|
A. | 320 m | B. | 350 m | C. | 650 m | D. | Data inadequate |
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Answer: Option B
Explanation:
Speed = |
| 300 |
| m/sec = | 50 | m/sec. |
18 | 3 |
Let the length of the platform be x metres.
3(x + 300) = 1950
x = 350 m.
Title : Trains Q50
Description : 50. 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...
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