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# Fresh Fruit contains 72% water and dry fruit contains 20%

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Director
Joined: 16 Jun 2004
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Fresh Fruit contains 72% water and dry fruit contains 20% [#permalink]

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08 Sep 2004, 22:54
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Fresh Fruit contains 72% water and dry fruit contains 20% water. How much dry fruit can be obtained from 100Kgs of fresh fruitss?

A. 35
B. 25
C. 30
D. 42.5
E: 32.5

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GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5034

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08 Sep 2004, 23:00
100kg --> 72kg of water, 28kg (rest of the fruit)
28kg of fruit remains, while 20% of the 72kg of water remains = .2*72 = 14.4

So weight of dry fruits = 28+14.4 = 42.4 kg of dry fruit..

hm... I'll got with D as that's the closest.

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Manager
Joined: 31 Dec 2003
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Location: US

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09 Sep 2004, 00:34
I will go for A.
fresh fruit contains 72% water and 28% fruit.
dry fruit contains 20% water and 80% fruit.

100 kgs of fresh fruit contains 72kgs water and 28kgs fruit.

So dry fruit can contain maximum of 28kgs fruit.

So , .8x = 28, x = 35Kgs. The remaining water from the fresh fruit will evapourate.

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GMAT Club Legend
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09 Sep 2004, 01:33
I disagree. the 28kg of fruit does not have a drop of water. So you cannto take 80% of 28kg.

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Manager
Joined: 02 Apr 2004
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09 Sep 2004, 04:52
I understand both approaches but I think A is the answer.

14.4 kilograms is not 20% of 42,40 kilograms, and dry fruit consists of 20% water and 80% fruit.

Please correct me if I am wrong.

Regards,

Alex

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Manager
Joined: 16 Jul 2003
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09 Sep 2004, 05:27
venksune wrote:
Fresh Fruit contains 72% water and dry fruit contains 20% water. How much dry fruit can be obtained from 100Kgs of fresh fruitss?

A. 35
B. 25
C. 30
D. 42.5
E: 32.5

Go with A, same logic as anuramm

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Director
Joined: 16 Jun 2004
Posts: 891

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09 Sep 2004, 13:57
OA is A.

Note, 28Kg of Solid material will accoutn for 80% of the overall weight of the dried fruit (as 20% of the wiegth is water in dried fruit).

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09 Sep 2004, 13:57
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