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MATH

posted by on .

THANKS FOR THE ANSWER
BUT I DON'T KNOW HOW TO WRITE THE PROBLEM
TO ARRIVE TO THAT ANSWER

  • MATH - ,

    I assume you mean the Santa page numbers?

    no. of 1-digit pages = 9
    no. of 2-digit pages = 90

    so,

    1*9 + 2*90 + 3n = 690
    3n = 501
    n = 167

    9+90+167 = 266

    Hmmm. I don't get 245. Check my math.

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