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 = $\dfrac{13}{25}\times100$=$13\times4=52\%$

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

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

Therefore, the total percent adds up to 100%.

So,

% of Copper = 52%

% of Zinc = 28%

% of Nickel = 20%

Answer 2

Copper = 13 parts, Zinc = 7 parts

Nickel = 5 parts

Total alloy = 13 + 7 + 5 = 25 parts

Now, percentage of copper = 13/25 × 100 = 52%

Percentage of zinc = 7/25 × 100 = 28%

And percentage of nickel = 5/25 × 100 = 20 %

HOPE THIS HELPS YOU ☺️