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June 23, 2004
Making Change
In the United States, coins come in five denominations: 1 cent, 5 cents, 10 cents, 25 cents, and 50 cents. What's the smallest number of coins that you would need to make change in any amount up to 99 cents?
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How many coins do you need to make change in the amount of 99 cents?
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It would take no more than eight coins.
For example, to get 99 cents, you would need one 50-cent coin (50 cents), one quarter (25 cents), two dimes (20 cents), and four pennies (4 cents).
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