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# A problem with an evasive grip

Author Message
Intern
Joined: 28 Jul 2018
Posts: 17
A problem with an evasive grip  [#permalink]

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28 Jul 2018, 06:16
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

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Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 % fescue. If a mixture of X and Y contains 30% ryegrass, what percent of the weight of the mixture is X?

A. 10%
B. 33 1/3%
C. 40%
D. 50%
E. 66 2/3%

What really is the fundamental principle tested in the above OG question? I've seen so many great looking solutions on it, which shamefully haven't made any clear sense to me bcos I couldn't apply them myself. Pls can someone give me a link or solution that shows the fundamental principle(s) being tested. Or help explain it to me as though you're explaining it to an idiot.

[size=80][b][i]Posted from my mobile device[/i][/b][/size]
Math Expert
Joined: 02 Sep 2009
Posts: 52386
Re: A problem with an evasive grip  [#permalink]

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28 Jul 2018, 06:19
S1937 wrote:
Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 % fescue. If a mixture of X and Y contains 30% ryegrass, what percent of the weight of the mixture is X?

A. 10%
B. 33 1/3%
C. 40%
D. 50%
E. 66 2/3%

What really is the fundamental principle tested in the above OG question? I've seen so many great looking solutions on it, which shamefully haven't made any clear sense to me bcos I couldn't apply them myself. Pls can someone give me a link or solution that shows the fundamental principle(s) being tested. Or help explain it to me as though you're explaining it to an idiot.

Posted from my mobile device

Discussed here: https://gmatclub.com/forum/seed-mixture ... 60580.html

_________________
Re: A problem with an evasive grip &nbs [#permalink] 28 Jul 2018, 06:19
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