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Question

Train A is (35n - 30) metres long, and it is 200 metres longer than Train
B. Train A takes 20 seconds to pass a tree, while Train B takes 16 seconds for the same. The combined speed of both trains is (3n + 1) metres per second. Find the time Train B will take to cross a platform that is 275 metres long.

A 27 seconds

B 30 seconds

C 33 seconds

D 24 seconds

E 36 seconds

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