It takes 10 s and 15 s, respectively, for two trains travelling at different constant speeds to completely pass a telegraph post. The length of the first train is 120 m and that of the second train is

(A) 2.0 (B) 10.0 (C) 12.0 (D) 22.0

Your Answer

@Deepsikha, where did u get that 150? And how did u know that the difference b/w the speeds is asked in the question? Insufficient data in the quest. Or not properly sentenced.

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