AMC 10 Step by Step
Log inSign up
Printable

2005 AMC 10B Problem 25

Include the solutionBack to the problem
2005 AMC 10B Problem 25AMC 10 Step by Step
Name:                             Date: September 13, 2026
Sets, Estimation & Miscellaneous · difficulty 4 of 5 · about 4 min · position P21-25

A subset BB of the set of integers from 11 to 100100 , inclusive, has the property that no two elements of BB sum to 125125 . What is the maximum possible number of elements in BB ?

  1. A)

    5050

  2. B)

    5151

  3. C)

    6262

  4. D)

    6565

  5. E)

    6868

Working