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# A solution of alcohol and water contains alcohol and water in the rati

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Math Expert
Joined: 02 Sep 2009
Posts: 53066
A solution of alcohol and water contains alcohol and water in the rati  [#permalink]

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22 Jan 2019, 01:17
1
00:00

Difficulty:

15% (low)

Question Stats:

92% (00:58) correct 8% (00:45) wrong based on 37 sessions

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A solution of alcohol and water contains alcohol and water in the ratio of 1:8. If the entire solution is 31.5 ounces, how many ounces of water are in the solution?

A 4.5
B 9
C 16
D 27
E 28

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Joined: 18 Aug 2017
Posts: 1928
Location: India
Concentration: Sustainability, Marketing
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WE: Marketing (Energy and Utilities)
Re: A solution of alcohol and water contains alcohol and water in the rati  [#permalink]

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22 Jan 2019, 04:49
Bunuel wrote:
A solution of alcohol and water contains alcohol and water in the ratio of 1:8. If the entire solution is 31.5 ounces, how many ounces of water are in the solution?

A 4.5
B 9
C 16
D 27
E 28

8* 31.5/ 9
IMO E
28 is correct
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Manager
Joined: 11 Dec 2013
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Location: India
GMAT Date: 03-15-2015
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Re: A solution of alcohol and water contains alcohol and water in the rati  [#permalink]

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22 Jan 2019, 22:49
ounces of water 8/9 * 31.5 = 28

IMO E
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Joined: 14 Mar 2018
Posts: 53
GPA: 2.99
Re: A solution of alcohol and water contains alcohol and water in the rati  [#permalink]

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22 Jan 2019, 23:04
Alcohol: Water = 1:8

Total: 31.5 ounces.

Let k :alcohol => water is 8k.

We have: k + 8k= 31.5

<=> 9k= 31.5 => k= 3.5

=> Water : 8k= 8 x 3.5= 28.0

Re: A solution of alcohol and water contains alcohol and water in the rati   [#permalink] 22 Jan 2019, 23:04
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