alleryAn alloy of zinc and copper is in ratio 5 : 3. How much zinc is in 40 kg of it?
A15 kg
B25 kg
C30 kg
D20 kg
Answer & Solution
Correct answer: B. 25 kg
Zinc is 5/8 of the alloy, and 5/8 of 40 kg is 25 kg.
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