Answer: Dark Chocolate = 2.5 lbs, Milk Chocolate = 0.5 lbs
Explanation:
Qty % Qty * %
Dark Chocolate: x 0.25 0.25(x) = 0.25x
Milk Chocolate: 3 - x 0.75 0.75(3 - x) = 2.25 - 0.75x
Mixture: 3 100% = 1
Part A: 0.25x + 2.25 - 0.75x = 1
2.25 - 0.50x = 1
-2.25 -2.25
-0.50x = -1.25
÷ -0.50 ÷ -0.50
x = 2.5
Milk Chocolate: 3 - x = 3 - 2.5 = 0.5