Question

an alloy consists of 30℅ zinc 45℅ nickel and the rest copper find the mass of copper in 400g of alloy proper solve ​

Answer 1

Step-by-step explanation:

Given :

30 % Zinc in an alloy

45 % Percentage Of Copper in alloy

Find :

Mass Of Copper 400 gram

Solution :

100 % - ( 30 + 45 ) %

100 % - 75 %

25 %

Now Mass Of Copper In 400 gram Of alloy

= 400 × 25 / 100 ( Divided by 100 to 400 )

= 25 × 4

= 100 gram

The Mass Of 400 gram is 100 gram