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2023 AMC 10B Problem 23

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2023 AMC 10B Problem 23AMC 10 Step by Step

Name: Date: September 13, 2026

Sequences & Series · difficulty 4 of 5 · about 7 min · position P21-25

An arithmetic sequence of positive integers has $n\ge3$ terms, initial term $a$ , and common difference $d>1$ . Carl wrote down all the terms in this sequence correctly except for one term, which was off by $1$ . The sum of the terms he wrote down was $222$ . What is $a+d+n$ ?

A)
$24$
B)
$20$
C)
$22$
D)
$28$
E)
$26$

2023 AMC 10B Problem 23

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