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1. If a 240-metre-long metro rail passes a pole in 24 seconds, how long will it take to pass a 650-metre-long platform?
- A. 60 seconds
- B. 60 seconds
- C. 60 seconds
- D. 60 seconds
Answer: Option C
Explanation:
Given:
Length of the train = 240m
Time taken to creoss the pole = 24s
Length of the platform = 650 m
Concept Used:
Time take into cross the platform = (lemgth of train + length of the platform)/speed
Speed of train = length of train/time taken
Calculation:
Speed of train = 240/24 = 10 m/s
Time taken to cross the platform = (240+650)/10 = 890/10
∴ The time taken to cross the platform is 89 s.
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