Question

An alloy consists of 35% zinc,45% nickel and rest copper. find the mass of copper in 550gm of the alloy

Answer 1

The amount of copper in the alloy is,
M=500×20/100=100
So amount of copper in alloy is 100gm

Answer 2

(a) 100 gm

The amount of copper in the alloy is,

$M= \: \frac{500 \times 20}{100} = 100$

So amount of copper in alloy is 100gm.