Question

An alloy contains 35% copper, 45% nickal and rest is zinc. Find the mass of zinc on kg of
the alloy.

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Answer 1

Step-by-step explanation:

ℍ ...........

$\% \: of \: copper + \% \: of \: nickel + \% \: of \: zinc = 100\% \\ \\ 35\% + 45\% + \% \: of \: zinc = 100\% \\ \\ \%of \: zinc = 100 - (45 + 35) \\ \\ = 20\% \\ \\ mass \: of \: zinc \: in \: 1kg \: of \: the \: alloy = 20\% \: of \: 1 \: kg \\ \\ = \frac{20}{100} \times 1 \\ \\ = 0.2kg \\ \\ 200gm$

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Answer 2

Answer:

Hlo mate

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