alleryAlloys of copper and tin in the ratios 3:2 and 1:4 are melted in equal weights. Copper to tin?
A2:3
B3:2
C1:2
D3:4
Answer & Solution
Correct answer: A. 2:3
Copper is (3/5 + 1/5)/2 = 2/5 of the alloy and tin is 3/5, so the ratio is 2:3.
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