Question

In an alloy proportion of Zinc, Copper and Lead is 2:3:1. In another alloy the proportion of Zinc,
Copper and Lead is 5:4:3. A third alloy is prepared by mixing both alloys in same quantity. The
proportion of Lead, Copper and Zinc in the third alloy will be.

Answer 1

answer is 5:10:9
5x for lead
10x for copper
9x for zinc