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# Solution A and solution B both contain only water and alcohol. If A an

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Senior PS Moderator
Joined: 26 Feb 2016
Posts: 3343
Location: India
GPA: 3.12
Solution A and solution B both contain only water and alcohol. If A an  [#permalink]

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25 Mar 2018, 09:46
1
2
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Difficulty:

45% (medium)

Question Stats:

60% (01:01) correct 40% (01:14) wrong based on 84 sessions

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Solution A and solution B both contain only water and alcohol. If A and B are mixed, what will be the percentage of alcohol in the resultant solution?

(1) A and B are mixed in the ratio 4:1
(2) A and B each contain 10% alcohol

Source: Experts Global

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RC Moderator
Joined: 24 Aug 2016
Posts: 681
Concentration: Entrepreneurship, Operations
GMAT 1: 630 Q48 V28
GMAT 2: 540 Q49 V16
Re: Solution A and solution B both contain only water and alcohol. If A an  [#permalink]

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25 Mar 2018, 11:24
pushpitkc wrote:
Solution A and solution B both contain only water and alcohol. If A and B are mixed, what will be the percentage of alcohol in the resultant solution?

(1) A and B are mixed in the ratio 4:1
(2) A and B each contain 10% alcohol

Source: Experts Global

1. No info about the content of A and B individually -------------->NS
2.1. No info about in which ratio A and B are mixed to get the res solution -------------->NS

1+ 2 : Both the info provided ---------------------------------->S Thus Ans C

example:
In A : 90 W 10 A
In B : 90 W 10 A
Say 400 L A mixed with 100 L B
in Resultant solution 360+90 W 40+10 A hence W:A= 9:1 => 10% A
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Manager
Joined: 30 Mar 2017
Posts: 134
GMAT 1: 200 Q1 V1
Re: Solution A and solution B both contain only water and alcohol. If A an  [#permalink]

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25 Mar 2018, 14:54
I think the answer is B.

If Solution A and Solution B both contain 10% alcohol, it doesnt matter how many liters of each solution are combined... the resultant solution will always have 10% alcohol.
Manager
Joined: 01 Feb 2018
Posts: 75
Location: India
Concentration: Entrepreneurship, Marketing
GPA: 4
WE: Consulting (Consulting)
Re: Solution A and solution B both contain only water and alcohol. If A an  [#permalink]

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26 Mar 2018, 03:14
1
pushpitkc wrote:
Solution A and solution B both contain only water and alcohol. If A and B are mixed, what will be the percentage of alcohol in the resultant solution?

(1) A and B are mixed in the ratio 4:1
(2) A and B each contain 10% alcohol

Source: Experts Global

imo B , as whatever be the ratio of mixture of A&B resultant will always be 10%
Re: Solution A and solution B both contain only water and alcohol. If A an   [#permalink] 26 Mar 2018, 03:14
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