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2025 AMC 12B Question 14

AMC12 · 2025 AMC 12B

Question 14

Consider a decreasing sequence of $n$ positive integers $x_1 \gt x_2 \gt \cdots \gt x_n$ that satisfies the following two conditions:

• The average (arithmetic mean) of the first $3$ terms in the sequence is $2025.$

• For all $4 \le k \le n,$ the average of the first $k$ terms in the sequence is $1$ less than the average of the first $k-1$ terms in the sequence.

What is the greatest possible value of $n?$
  1. $1013$
  2. $1014$
  3. $1016$
  4. $2016$
  5. $2025$