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Empty Jar [#permalink]
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29 Apr 2011, 01:50
Question Stats:
100% (01:50) correct
0% (00:00) wrong based on 3 sessions
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Joined: 16 Nov 2010
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Location: United States (IN)
Concentration: Strategy, Technology

Re: Empty Jar [#permalink]
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29 Apr 2011, 06:21
1
This post received KUDOS
x/4 = y/3 => y < x So x/4 + 1/3(3x/4) = x/2 Answer  C
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Manager
Joined: 09 Aug 2010
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Re: Empty Jar [#permalink]
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29 Apr 2011, 06:44
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)
Answer is 1/2
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Intern
Joined: 09 Apr 2010
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Re: Empty Jar [#permalink]
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29 Apr 2011, 08:50
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












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