Question

an alloy consists of 13 parts of copper to 7 parts of zinc and 5 parts nickel what is the percentage composition of alloy?? plz solve this in a proper way step by step.​

Answer 1

Total Parts of Alloy = 13+7+5 => 25

% of Copper = $\sf{\dfrac{13}{25}\times 100 = 13\times4=52\%}$

% of Zinc = $\sf{\dfrac{7}{25}\times100=7\times4=28\%}$

% of Nickel = $\sf{\dfrac{5}{25}\times100=5\times4=20\%}$

Therefore, the total percent adds up to 100%.

So,

% of Copper = 52%

% of Zinc = 28%

% of Nickel = 20%

Hope it helps u

Have a great day ahead

Annyeong

Answer 2

Answer:

Copper = 13 parts , Zinc = 7 parts

Nickel = 5 parts

Total alloy = 13 + 7 + 5 = 25 parts

Now, percentage of copper = \frac{13}{25}\times100=52\%

25

13

×100=52%

Percentage of zinc = \frac{7}{25}\times100=28\%

25

7

×100=28%

And percentage of nickel = \frac{5}{25}\times100=20\%

25

5

×100=20%