Math

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John's Collection:
10 coins in all
2 fewer quarters than dimes
2 quarters

Q =
D =
N =

  • Math -

    Q = 2 , it said so
    D = 4 , it said so
    N = 4 , assuming he only had nickels, dimes and quarters, and no pennies

    otherwise:
    3N and 1 P
    2N and 2P
    1 N and 3 P
    no N and 4 P

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