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A
B
C
D
E
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Difficulty—
If \(50 \text{ml}\) of an \(x\%\) alcohol solution is mixed with \(30 \text{ml}\) of a \(y\%\) alcohol solution, what percentage of the final solution is alcohol?
1. \(5x+3y=280\)
2. \(2x+7y=460\)
The OA is A
1. \(5x+3y=280\)
2. \(2x+7y=460\)
The OA is A
