Question

A goldsmith mixes the gold with copper in ratio 5:8. another goldsmith mixes these in the ratio 3:7. compare the quality

Answer 1

we should see the quality of gold right
goldsmith 1=5/5+8=5/13=0.38
goldsmith 2=3/3+7=3/10=0.3
so the quality of goldsmith 1 is greater than the quality of gold smith 2