Free Practice Question
PS · Problem Solving
705-805
Mixture
An alloy is made of three metals: copper, iron, and zinc, with prices per kg of $32, $17, and $36 respectively. These metals are mixed in the ratio x:y:z such that x, y, and z are in geometric progression and x < y < z. If the price of the alloy is $30 per kg, what would be the price per kg of the alloy if they are mixed in the ratio x:z:y?
Answer Choices
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31.43
B
24.57
C
27.69
D
25.25
E
26.23
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Difficulty
705-805
Type
PS
Category