1.

Two trains of equal length take 10 seconds and 15 seconds respectively to cross a telegraph post

Answer»

then the first train is moving with more speed than the otherExplanation:if the length of the trains is TAKEN as x,the speeds are given by;train₁=x/10train₂=x/15train₁ : train₂= 3x /30: 2x/30x/30 is cancelled on both sidestrain₁ : train₂= 3:2hope it helped and PLS mark as BRAINLIEST:)



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