Question

An alloy consist of 30% zinc,45% nickel and the rest copper. Find the mass of copper in 400 g of alloy

Answer 1

the copper percentage is 25%.

Answer 2

$\textbf {Hey there, here is the solution.}$

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Percentage of copper:

100 - 30 - 45 = 25%

.

Mass of copper in 400g of alloy:

25% x 400g = 0.25 x 400 = 100g

.

Answer: There are 100g of copper in 400 g of alloy

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⭐$\textbf {Cheers }$⭐