Question

an alloy consists of 15 whole 1//2 g of zinc and 7 whole 3/4g copper find the ratio by weight of zinc to copper in alloy​

Answer 1

zinc=15whole 1/2g or 15.5g

copper=7whole 3/4g or 7.75g

ratio of zinc to copper= 15.5:7.75= 2:1