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If 9 models participated in a certain fashion show featuring coats, ho

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If 9 models participated in a certain fashion show featuring coats, ho [#permalink] New post   Updated on: 31 Oct 2018, 21:59
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Question Stats:

86% (00:40) correct 15% (00:48) wrong based on 200 sessions
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If 9 models participated in a certain fashion show featuring coats, how many different coats did they model?

(1) The fashion show lasted 90 minutes.
(2) The ratio of the number of models who participated in the show to the number of different coats modeled was 1 to 7.
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B

Originally posted by GMATBusters on 31 Oct 2018, 09:45.
Last edited by Bunuel on 31 Oct 2018, 21:59, edited 1 time in total.
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Re: If 9 models participated in a certain fashion show featuring coats, ho [#permalink] New post   31 Oct 2018, 11:23
Statement :1
The fashion show lasted 90 minutes.: no info about coats
Not sufficient

Statement:-2
Ratio of number of model to no of different coats = 1/7
M/C= 1* / 7*
Given M=9
So if x=1 then Coats =63
Sufficient:
B
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Re: If 9 models participated in a certain fashion show featuring coats, ho [#permalink] New post   20 Nov 2019, 11:28
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gmatbusters wrote:
If 9 models participated in a certain fashion show featuring coats, how many different coats did they model?

(1) The fashion show lasted 90 minutes.
(2) The ratio of the number of models who participated in the show to the number of different coats modeled was 1 to 7.


Given: 9 models participated in a certain fashion show featuring coats

Target question: How many different coats did they model?

Statement 1: The fashion show lasted 90 minutes.
The statement provides new information about the number of coach that were modeled.
Since we cannot answer the target question with certainty, statement 1 is NOT SUFFICIENT

Statement 2: The ratio of the number of models who participated in the show to the number of different coats modeled was 1 to 7
Let x = total number of different coats modeled
We can write: number of models : number of different coats modeled = 1 : 7
Substitute values to get: 9 : x = 1 : 7
In other words: 9/x = 1/7
Solve to get: x = 63
The answer to the target question is 63 different coats were modeled
Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: B

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Brent
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Re: If 9 models participated in a certain fashion show featuring coats, ho [#permalink] New post   15 Dec 2019, 19:39
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gmatbusters wrote:
If 9 models participated in a certain fashion show featuring coats, how many different coats did they model?

(1) The fashion show lasted 90 minutes.
(2) The ratio of the number of models who participated in the show to the number of different coats modeled was 1 to 7.



Statement One Only:

The fashion show lasted 90 minutes.

This doesn’t tell us the number of different coats modeled. Statement one alone is not sufficient.

Statement Two Only:

The ratio of the number of models who participated in the show to the number of different coats modeled was 1 to 7.

If we let x = the number of different coats modeled, we can create the equation:

9/x = 1/7

x = 63

So there are 63 different coats modeled. Statement two alone is sufficient.

Answer: B
GMAT Club Bot
gmatclubot
Re: If 9 models participated in a certain fashion show featuring coats, ho [#permalink]
15 Dec 2019, 19:39
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Bunuel
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