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Two trains starting at the same time from 2 station 200 Km apart

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Joined: 31 Oct 2013
Posts: 1489
Concentration: Accounting, Finance
GPA: 3.68
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Two trains starting at the same time from 2 station 200 Km apart  [#permalink]

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New post 23 Nov 2019, 04:09
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Two trains starting at the same time from 2 station 200 km apart and going towards each other cross each other at a distance of 110 km from one of the stations. what is the ratio of their speeds?

A)11 : 9
B)13:11
C)3:2
D)7:5
E)5:7
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Re: Two trains starting at the same time from 2 station 200 Km apart  [#permalink]

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New post 23 Nov 2019, 05:14
Suppose first train is having speed A
Second train is having speed B

If we assume first train covered distance of 110 then second train will cover distance of 90

Ratio of speeds= (distance/time) of first / ( distance / time) of second

Since time is same for covering both distances

Ratio= 110/ 90=11/9

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Re: Two trains starting at the same time from 2 station 200 Km apart   [#permalink] 23 Nov 2019, 05:14
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Two trains starting at the same time from 2 station 200 Km apart

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