Beat The GMAT

mehravikas · Wed Nov 25, 2009 1:18 pm

Fresh fruits contain 72% of water and dry fruits contain 20% of water. How many pounds of dry fruits can be obtained from 100 pounds of fresh fruits?

answer: 35

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Stuart Kovinsky · Wed Nov 25, 2009 4:23 pm

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mehravikas · Thu Nov 26, 2009 12:25 pm

Wow....you have made it look so simple. Thanks Smile

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Gmatter2.0 · Sun Dec 06, 2009 10:39 pm

100 Fresh Fruit-Strictly it should have 72 lb Water and 28 lb Fruit according to the Qn.

Eliminate all choices with Fruit less than 28.

Now in Dry fruit the ratio is W/F=20/80=1/4

So for every 4 lb of Fruit 1lb is water

Therefore the Total Dry fruit from 100lb =28+28/4 * 1
=28+7
=35

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viju9162 · Mon Dec 07, 2009 12:10 am

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satish.nagdev · Tue Dec 08, 2009 2:20 am

I hope to make it simpler,
100 pounds of fresh fruit gives 28 pounds of dry fruit - water(20%) so that means 28 pounds of fruit = 80% of some dry fruit quantity not 100% right?
[28 = 80% * fruit ]+ water = actual dry fruit, so find quantity of fruit + water [I hope its clear now Viju Very Happy