hitbullseye 2015 Bull Mock CAT -01 - Discussions

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hitbullseye 2015 Bull Mock CAT -01 - Discussions

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Hi guys, let's discuss the doubts in

hitbullseye 2015 Bull Mock CAT -01 here . 😃

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2 trains each of length 120 metres move in the same direction. The faster train completely overtakes the slower one in 15 seconds. If the slower train were to move at half its speed, faster train would overtake it in 10 seconds. Find the speeds of the two trains (faster and slower respectively in m/s)

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@tansy2426  ·  0 karma

I have doubt in this question. If somebody can help, it would be great.

Shouldn't the relative distance be taken as 120m ? I solved the question like this : Rel Distance = 120 m ; s1 = speed of faster train ; s2= speed of slower train Rel speed in first case = s1 - s2 = 120m/15sec = 8 m/s Rel speed in 2nd case = s1 - s2/2 = 120m/10s = 12m/s Solve above equations.. s1 = 16m/s s2 = 8m/s But my answer doesn't match with any of the options 😞 .

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