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A certain 4-liter solution of vinegar and water consists of x liters
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29 Sep 2011, 02:44
29 Sep 2011, 02:44
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A certain 4-liter solution of vinegar and water consists of x liters of vinegar and y liters of water. How many liters of vinegar does the solution contain?
(1) x/4 = 3/8
(2) y/4 = 5/8
(1) x/4 = 3/8
(2) y/4 = 5/8
Show SpoilerMy concern
Can someone help to solve this using allegations and mixtures?
NOTE: I know this can be solved using finding values of x and y too... but i am looking for allegations method out of curiosity..
NOTE: I know this can be solved using finding values of x and y too... but i am looking for allegations method out of curiosity..
Joined: 16 Aug 2011
Status:Bell the GMAT!!!
Affiliations: Aidha
Posts: 108
Given Kudos: 43
Location: Singapore
Concentration: Finance, General Management
GMAT 1: 680 Q46 V37
GMAT 2: 620 Q49 V27
GMAT 3: 700 Q49 V36
WE:Other (Other)
Re: A certain 4-liter solution of vinegar and water consists of x liters
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29 Sep 2011, 03:47
29 Sep 2011, 03:47
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siddhans
Can someone help to solve this using allegations and mixtures?
A certain 4-liter solution of vinegar and water consists of x liters of vinegar and y liters of water. How many liters of vinegar does the solution contain?
(1) x/4 = 3/8
(2) y/4 = 5/8
Show SpoilerMy concern
NOTE: I know this can be solved using finding values of x and y too... but i am looking for allegations method out of curiosity..
(1) x/4 = 3/8
(2) y/4 = 5/8
This is not an allegations question. allegations would be used in something like this:
you have a solution which is 10% vinegar and 90% water. The new solution needs to be 85% water. How much vinegar should be added. (not a very good question but something like this).
Let me give you a real question which you may want to solve using allegation:
A certain quantity of 40% solution is replaced with 25% solution such that the new concentration is 35%. What is the fraction of the solution that was replaced?
(A) 1/4
(B) 1/3
(C) 1/2
(D) 2/3
(E) ¾
Joined: 20 Jul 2010
Status:Target MBA
Posts: 87
Given Kudos: 12
Location: Singapore
GMAT 2: 640 Q49 V28
Re: A certain 4-liter solution of vinegar and water consists of x liters
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01 Oct 2011, 02:11
01 Oct 2011, 02:11
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siddhans
Can someone help to solve this using allegations and mixtures?
A certain 4-liter solution of vinegar and water consists of x liters of vinegar and y liters of water. How many liters of vinegar does the solution contain?
(1) x/4 = 3/8
(2) y/4 = 5/8
Show SpoilerMy concern
NOTE: I know this can be solved using finding values of x and y too... but i am looking for allegations method out of curiosity..
(1) x/4 = 3/8
(2) y/4 = 5/8
We don't need allegation for solve this question
Given: x + y = 4
(1) x = 1.5
Sufficient.
(2) y = 2.5
hence x = 4 - 2.5 =1.5
Sufficient
Hence D
