Oranges have 80 calories and cost $1.20 each. If Timmy has $10 and needs to make sure he gets 400 calories, how much money will he have left after he buys the oranges he needs?
Thoughts? Step-by-step reasoning:
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He needs to buy 5 oranges because 400 / 80 = 5. These will cost $6 because 5 x 1.2 = 6. He will have $4 left because 10 - 6 = 4.
Thus, the answer is 4.
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