Because the ratio for both candles is 20/60 or 1/3 then take the number of ounces the candle has and divide by 1/3. In expression: 9 / 1/3 => 9 * 3 = 18
15 Bags. If he buys 15 two-pound bags he will have thirty pounds of peanuts, enough to fill thirty six 5/6-pound bags without having any peanuts left over.
