Question

Analloy consists of 13 parts of copper to 7 parts of zinc and 5 parts of nickle what is percentage composition of alloy

Answer 1

Total parts = 13 + 7 + 5 = 25 .

Percentage composition of copper = 13/25 × 100 = 52%

Percentage composition of zinc = 7/25*100=28%

Percentage composition of nickel = 5/25×100 = 20% .