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

Here the sum of all parts =13+7+5=25

Percentage of copper = 13/25×100=52%

Percentage of zinc =7/25×100=28%

Percentage of nickel = 5/25×100=20%

HOPE THIS HELPS YOU ☺️