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problem solving question any thoughts ?

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by Rahul@gurome » Sun Dec 05, 2010 12:32 pm
x = (1/2) of y
Therefore, (1/2) of x = (1/4) of y

New content of y = (2/3) of y + (1/2) of x = (2/3) of y + (1/4) of y = (2/3 + 1/4) of y = (11/12) of y

Now y is 11/12 full.
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by hittingthegmat » Sun Dec 05, 2010 1:29 pm
Thanks that what I thought also but I did it by picking numbers, namely 300L and 600L. So x has a 300L capacity it is half so it has 150L then y is a 600L capacity and at 2/3 it has 400 L . Adding the x to the y you get 550 out of 600. Making it 55/60 = 11/12
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by ikaplan » Sun Dec 05, 2010 2:26 pm
Hi,

I used the 'picking numbers' method and it really worked good for me. I was able to solve the question in less than a minute.

Hint: when picking numbers, pick as smaller numbers as you can. Instead of picking 600L and 300L you might consider picking 60L and 30L.

Cheers!
"Commitment is more than just wishing for the right conditions. Commitment is working with what you have."
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