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2002 AMC 10B Problem 25

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2002 AMC 10B Problem 25AMC 10 Step by Step
Name:                             Date: September 13, 2026
Linear Equations & Word Problems · difficulty 4 of 5 · about 4 min · position P21-25

When 1515 is appended to a list of integers, the mean is increased by 22 . When 11 is appended to the enlarged list, the mean of the enlarged list is decreased by 11 . How many integers were in the original list?

  1. A)

    44

  2. B)

    55

  3. C)

    66

  4. D)

    77

  5. E)

    88

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