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

Answer:

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

% of Copper = \dfrac{13}{25}\times100

25

13

×100 =13\times4=52\%13×4=52%

% of Zinc = \dfrac{7}{25}\times100

25

7

×100 =7\times4=28\%7×4=28%

% of Nickel = \dfrac{5}{25}\times100

25

5

×100 =5\times4=20\%5×4=20%

Therefore, the total percent adds up to 100%.

So,

% of Copper = 52%

% of Zinc = 28%

% of Nickel = 20%