MathDB

A7 B15

Part of 2021 LMT Spring

Problems(1)

2021 LMT Spring Division A Problem 7

Source:

10/22/2021
A geometric sequence consists of 1111 terms. The arithmetic mean of the first 66 terms is 6363, and the arithmetic mean of the last 66 terms is 20162016. Find the 77th term in the sequence.
Proposed by Powell Zhang