Empty Jar : GMAT Problem Solving (PS)
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# Empty Jar

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Manager
Joined: 06 Apr 2010
Posts: 144
Followers: 3

Kudos [?]: 659 [0], given: 15

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29 Apr 2011, 00:50
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Difficulty:

(N/A)

Question Stats:

100% (01:50) correct 0% (00:00) wrong based on 3 sessions

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[Reveal] Spoiler: OA
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Joined: 16 Nov 2010
Posts: 1672
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 33

Kudos [?]: 514 [1] , given: 36

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29 Apr 2011, 05:21
1
KUDOS
x/4 = y/3

=> y < x

So x/4 + 1/3(3x/4) = x/2

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Manager
Joined: 09 Aug 2010
Posts: 107
Followers: 1

Kudos [?]: 42 [0], given: 7

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29 Apr 2011, 05:44
Let J be the container of water poured to smaller and bigger jar
Let L be the bigger jar

L/4 = J/2 (the larger is filled to 1/4 its capacity by the same amoun as the smaller jar)
2(L/4)=J (combine the water to the larger jar)
L/2 = J (the larger jar is filled to its half capacity)

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Joined: 09 Apr 2010
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29 Apr 2011, 07:50
The easiest way to approach this one is to combine 1/4 and 1/4 (or 1/3 and 1/3). We only need to know which cup is the bigger one. The cup which is 1/4 filled is the bigger one.
So:
We know that EQUAL ammount is poured into the two jars. If you add water into the first jar and it is 1/4 filled, and then once again the same ammount (1/4 of the jar) you will get the final result.
Or:
1/4 + 1/4 = 1/2
Re: Empty Jar   [#permalink] 29 Apr 2011, 07:50
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# Empty Jar

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