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# If fifteen quarts of water evaporate from sixty quarts of a

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Manager
Joined: 02 Jul 2003
Posts: 58
If fifteen quarts of water evaporate from sixty quarts of a [#permalink]

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03 Sep 2003, 05:08
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If fifteen quarts of water evaporate from sixty quarts of a 3% salt solution, what is the concentration of the new solution?

A. 3.5%
B. 4%
C. 4.5%
D. 5%
E. 6%
Senior Manager
Joined: 22 May 2003
Posts: 329
Location: Uruguay

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03 Sep 2003, 07:36
3% of 60 is 1.8

15 quarts of water evaporates, so we are left with 45 quarts

1.8/45=4/100=4%

03 Sep 2003, 07:36
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