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On a certain sight-seeing tour, the ratio of the number of

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On a certain sight-seeing tour, the ratio of the number of [#permalink]

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New post 11 Oct 2008, 00:14
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On a certain sight-seeing tour, the ratio of the number of women to the nubmer of children was 5 to 2. What
was the number of men on the sight-seeing tour?
a. on the sight seeing tour, the ratio of the number of children to the nubmer of men was 5 to 11
b. the number of women on the sight seeing tour was less than 30

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Re: OG PT DS [#permalink]

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New post 11 Oct 2008, 00:31
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redbeanaddict wrote:
On a certain sight-seeing tour, the ratio of the number of women to the nubmer of children was 5 to 2. What was the number of men on the sight-seeing tour?
a. on the sight seeing tour, the ratio of the number of children to the nubmer of men was 5 to 11
b. the number of women on the sight seeing tour was less than 30


w-women, c-children and m-men

The question says w:c is 5:2

(a) c:m is 5:11

from this and using info provided in the question stem, we can form the relation between w,c and m.

w:c:m ==> 25:10:22

so number of men = some multiple of 22. But we cant say anything clearly how many men.

(b) w< 30 . Not sufficient since no info about men provided.

Combined. women can be some multiple of 25. That is women can be 25, 50, 75 etc. From 2 we know that w < 30 so women has to be 25. This means that number of men =22

So C
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Re: OG PT DS [#permalink]

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New post 11 Oct 2008, 00:39
Great explanation. OA is C

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Re: OG PT DS   [#permalink] 11 Oct 2008, 00:39
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