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11 June, 04:49

Mr. Otsuki has 25 bills worth $300. He has $5, $10, and $20 bills. How many of each type of bill could he have if he has exactly ten $20 bills and at least nine $5 ...

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  1. 11 June, 06:07
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    Mr. Otsuki could have:

    10 $20 bills

    5 $10 bills

    10 $5 bills

    but there are many other ways.

    Step-by-step explanation:

    We already know that Mr. Otsuki already has at least $245.

    10 $20 bills - $200

    at least 9 $5 bills - $45

    300 - 245 = 55

    55 can be made up in many different ways

    5 tens + 1 five

    9 fives + 1 tens

    4 tens + 3 fives

    5 fives + 3 tens

    2 tens + 7 fives

    So there are like five answers to this question:

    A.

    10 $20 bills

    5 $10 bills

    10 $5 bills

    B.

    10 $20 bills

    1 $10 bills

    9 $5 bills

    C.

    10 $20 bills

    4 $10 bills

    3 $5 bills

    D.

    10 $20 bills

    3 $10 bills

    5 $5 bills

    10 $20 bills

    2 $10 bills

    7 $5 bills
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