A baker sells a dozen donuts for $3.99. The cost to make three donuts is $0.45. How much is the total profit on 5 dozen of donuts?
$10.95
$17.70
$13.20
$2.19
Detailed Explanation
Multiply 0.45 (the cost of making 3 donuts) by 4 to find the cost of making a dozen donuts: 0.45 × 4 = 1.80.
Then multiply the cost of making a dozen donuts by 5 to determine the cost per 5 dozen: 1.80 × 5 = 9.00.
Next, multiply the selling price per dozen times 5, the number of dozens sold: 3.99 × 5 = 19.95.
Finally subtract the cost of making 5-dozen donuts from the price the baker sells them for to determine the profit: 19.95 – 9.00 = 10.95.
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