You are hosting a graduation party and you need 32 gallons of lemonade. Which is the best buy?
six 5-gallon jugs at 100 each + two 1-gallon jugs at 15 each
three 10-gallon jugs at 208 each + two 1-gallon jugs at 15 each
one 25-gallon jug at 542 + one 10-gallon jug at 208
one 25-gallon jug at 542 + one 5-gallon jug at 100 + two 1-gallon jugs at 15 each
Detailed Explanation
Comparing all the combinations, the best buy is the "six 5-gallon jugs at 100 each + two 1-gallon jugs at 15 each", which costs: (6 x 100) + (2 x 15) = 630 (32 gallons) The costs of the other combinations are: 542 + 208 = 750 (35 gallons) 542 + 100 + (2 x 15) = 672 (32 gallons) (3 x 208) + (2 x 15) = 654 (32 gallons)
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