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Nora had 20% fewer pictures than Maria. After Nora gave 12 pictures to Maria, she had half as many pictures as Maria. How many pictures did Nora have at first?

  • Math -

    n = .8m
    n-12 = .5(m+12)

    (m,n) = (60,48)

    Nora had 48
    Maria had 60
    Later, Nora had 36 and Maria had 72

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