Question

T100 - (75 + 10% = 15%.]
An alloy consists of 13 parts of copper, 7 parts of zinc and 5 parts of nickel. Find the percentage
of copper in the alloy.​

Answer 1

→ The conditions are the alloy consists of 13 parts of copper to 7 parts of zinc and 5 parts of nickel.

• The percentage calculation of the alloy is given below. We can take copper as 13 / 25 which is 52%.

• The value of nickel is 5 / 25, so the percentage will be 20%.

• Similarly, if the value of zinc is 7 / 25, then the percentage will be 28%.