Answer:
3 lbs of chocolate, 5 lbs of sugar, and 10 lbs of flour
Explanation:
5 * 3 = 15 (chocolate)
3 * 5 = 15 (sugar)
2 * 10 = 20 (flour)
---------------------
15 + 20 = 35
35 + 15 = 50 (dollars)
---------------------
3 + 10 + 5 = 18 (pounds)
---------------------
5 * 2 = 10 (sugar to flour)