An alloy of tin and lead contains 20% more tin than lead. How much tin and how much

An alloy of tin and lead contains 20% more tin than lead. How much tin and how much lead is contained in 350 g of alloy?

1. Find the percentage of lead in the alloy. To do this, we compose an equation, where x is the% lead.
x + x + 20 = 100;
2x + 20 = 100;
2x = 100 – 20;
2x = 80;
x = 80/2;
x = 40 percent.
2. Find how many percent of the tin contains the alloy.
40 + 20 = 60 percent.
3. Find how many grams of lead are contained in 350 g of the alloy.
350 * 40/100 = 140 grams.
4. Find how many grams of tin are contained in 350 g of the alloy.
350 * 60/100 = 210 grams.
Answer: the alloy contains 140 g of lead and 210 g of tin.