Question

An alloy contains 40% copper, 32% nickel and rest zinc. Find the mass of zinc in one kg of
the alloy
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Answer 1

Answer:

280 gram of zinc

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Answer 2

Answer:

Alloy contains, 32% of copper 40% of nickel Remaining zinc Mass of alloy = 1kg = 1000 grams Mass of copper in alloy = (1000/100) × 32 = 320 grams Mass of nickel in alloy = (1000/100) × 40 = 400 grams So, mass of zinc in alloy = 1000 – (320 + 400) = 1000 – 720 = 280 grams ∴ Mass of zinc in 1kg of alloy is 280 grams.