Printable

2002 AMC 10B Problem 19

Include the solution Back to the problem

2002 AMC 10B Problem 19AMC 10 Step by Step

Name: Date: October 28, 2026

Sequences & Series · difficulty 3 of 5 · about 3 min · position P16-20

Suppose that $\{a_n\}$ is an arithmetic sequence with $a_1+a_2+\cdots+a_{100}=100 \text{ and } a_{101}+a_{102}+\cdots+a_{200}=200.$ What is the value of $a_2 - a_1 ?$

A) $0.0001$
B) $0.001$
C) $0.01$
D) $0.1$
E) $1$

2002 AMC 10B Problem 19

Working