Question

An alloy consist of 7 parts of zinc and 33 part of copper find the percentage of copper in the alloy

Answer 1

total parts=7+33=40
percentage of copper=(33/40)*100
percentage=33*5/2
percentage of copper=82.5

Answer 2

Answer:

Total alloy = 33+7=40

Therefore copper cover 33/40

So, the percentage of copper= (33/40 × 100) % = 82.5 %