It takes 27 seconds and 17 seconds for two trains to cross a stationary man on the platform in reverse. If two trains take 23 seconds to cross each other, what is the speed ratio?
A. \(1:3\)
B. \(3:2\)
C. \(3:4\)
D. None
সঠিক উত্তরঃ
B.
\(3:2\)
Explanation:
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