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Three alcohol solutions are 1 percent, 3 percent, and 6 percent by vol
[#permalink]
29 Sep 2021, 05:15
29 Sep 2021, 05:15
Expert Reply
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Question Stats:
85% (01:44) correct
14% (01:44) wrong based on 27 sessions
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Three alcohol solutions are 1 percent, 3 percent, and 6 percent by volume. If a ounces of the 1 percent solution, b ounces of the 3 percent solution, and c ounces of the 6 percent solution are mixed to give a + b + c ounces of a 2 percent solution, what is a in terms of b and c?
(A) b+c/5
(B) b + 4c
(C) 2b + 5c
(D) 3c + 6b
(E) c + 1.5b
(A) b+c/5
(B) b + 4c
(C) 2b + 5c
(D) 3c + 6b
(E) c + 1.5b
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Joined: 19 Nov 2020
Posts: 326
Given Kudos: 64
GRE 1: Q160 V152
Three alcohol solutions are 1 percent, 3 percent, and 6 percent by vol
[#permalink]
29 Sep 2021, 09:40
29 Sep 2021, 09:40
2
\(0.1a+0.3b+0.6c=0.2(a+b+c)\)
\(0.1a-0.1b-0.4c=0\), and multiply both sides by \(10\)
\(a=b+4c\)
answer is B
\(0.1a-0.1b-0.4c=0\), and multiply both sides by \(10\)
\(a=b+4c\)
answer is B
Carcass wrote:
Three alcohol solutions are 1 percent, 3 percent, and 6 percent by volume. If a ounces of the 1 percent solution, b ounces of the 3 percent solution, and c ounces of the 6 percent solution are mixed to give a + b + c ounces of a 2 percent solution, what is a in terms of b and c?
(A) b+c/5
(B) b + 4c
(C) 2b + 5c
(D) 3c + 6b
(E) c + 1.5b
(A) b+c/5
(B) b + 4c
(C) 2b + 5c
(D) 3c + 6b
(E) c + 1.5b
gmatclubot
Three alcohol solutions are 1 percent, 3 percent, and 6 percent by vol [#permalink]
29 Sep 2021, 09:40
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