Question

An alloy contains 40%of copper nickel is 32%and the rest is zinc find the mass of zinc in 2 kg of alloy

Answer 1

Answer:

Step-by-step explanation:

let the % be x.

40 + 32 + x = 100

72 + x = 100

x = 100 - 72

x = 28.

Given, Mass = 1 Kg

So, mass of zinc = 28/ 100

= 0.28 Kg.

Hope this helps!

Answer 2

Answer:

Let the percentage will be 'x'.

$\boxed{ \sf \: 40 + 32 + x = 100}$

$\boxed{ \sf \: 72 + x = 100}$

$\boxed{ \sf \:x = 100 - 72 }$

$\boxed{ \pink{ \sf \: x = 28}}$

Given mass =1 KG

So mass of Zinc =

$\boxed{ \blue{ \sf \: \frac{28}{100} = 0.28kg}}$

Hence This is Answer.