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# on a certain site seeing tour, the ratio of the no: of women

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Intern
Joined: 18 Sep 2008
Posts: 5
on a certain site seeing tour, the ratio of the no: of women [#permalink]

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15 Oct 2008, 08:10
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

on a certain site seeing tour, the ratio of the no: of women to the no: of children was 5:2. What was the no: of men on the site seeing tour??

stat 1> On the site seeing tour, the ratio of the no: of children to the no: of men was 5:11
stat 2> the no: of women on the site seeing tour was less than 30
Director
Joined: 23 May 2008
Posts: 799

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15 Oct 2008, 08:51
dhegdex wrote:
on a certain site seeing tour, the ratio of the no: of women to the no: of children was 5:2. What was the no: of men on the site seeing tour??

stat 1> On the site seeing tour, the ratio of the no: of children to the no: of men was 5:11
stat 2> the no: of women on the site seeing tour was less than 30

E

1) ratio of W:C:M= 12.5:5:11
need to know number of women or number of children to determine number of men
insuff

2) W<30

together
W:C:M= 12.5:5:11
W<30

W could be 25 or it hypothetically could be 12.5
which would give you 22 and 11 men, respectively
so insuff
Intern
Joined: 30 Sep 2008
Posts: 11

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15 Oct 2008, 08:52
on a certain site seeing tour, the ratio of the no: of women to the no: of children was 5:2. What was the no: of men on the site seeing tour??

stat 1> On the site seeing tour, the ratio of the no: of children to the no: of men was 5:11
stat 2> the no: of women on the site seeing tour was less than 30
---------------------------------------------------------------------------------------

1> Does not speak about the number of ppl in the site... NA
2>Speaks about women in the site. But is not clear as to what it can be...

WE NEED THE NUMBER OF PPL IN THE SITE..

E
Current Student
Joined: 28 Dec 2004
Posts: 3342
Location: New York City
Schools: Wharton'11 HBS'12

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15 Oct 2008, 09:03
dhegdex wrote:
on a certain site seeing tour, the ratio of the no: of women to the no: of children was 5:2. What was the no: of men on the site seeing tour??

stat 1> On the site seeing tour, the ratio of the no: of children to the no: of men was 5:11
stat 2> the no: of women on the site seeing tour was less than 30

I will go with C...

W:C
5:2

1) says C:M
5:11

so ratio now is

25:10:22

2) says no. of women is less than 30..

alone insuff..

together I know that no.of men is 22..
Director
Joined: 23 May 2008
Posts: 799

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15 Oct 2008, 09:19
fresinha12 wrote:
dhegdex wrote:
on a certain site seeing tour, the ratio of the no: of women to the no: of children was 5:2. What was the no: of men on the site seeing tour??

stat 1> On the site seeing tour, the ratio of the no: of children to the no: of men was 5:11
stat 2> the no: of women on the site seeing tour was less than 30

I will go with C...

W:C
5:2

1) says C:M
5:11

so ratio now is

25:10:22

2) says no. of women is less than 30..

alone insuff..

together I know that no.of men is 22..

yeah..i guess you are right unless we can count the woman with no legs. We need integers. such a tricky test!
Senior Manager
Joined: 04 Aug 2008
Posts: 372

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15 Oct 2008, 09:42
C

it is possible to find out the m/w ratio using m and w against children rations so 22/25

since there was less then 30 females the number has to be in increments so 25
_________________

The one who flies is worthy. The one who is worthy flies. The one who doesn't fly isn't worthy

Manager
Joined: 22 Jul 2008
Posts: 146

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15 Oct 2008, 12:31
Let women be = 5x
Men be = 11y
and
children be = 2x or 5y.(2x = 5y)
Therefore, 5x + 2x + 11y = T (total no. of people)
Substituting y for x we get,
25y/2 + 5y + 11y = T
57y/2 = T
Now from 2) women < 30 i.e., 25y/2 < 30
y < 60/25
y cannot be 1 because then T will not be a whole no. y cannot be 3 because then, y > 60/25
Therefore y = 2
Therefore T = 57 and the respective nos. of women, men and children can be determined.
Ans is C.
Re: data sufficiancy   [#permalink] 15 Oct 2008, 12:31
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# on a certain site seeing tour, the ratio of the no: of women

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