2025 AMC 8 Problem 4
Below is the video solution and professionally curated solution for Problem 4 of the 2025 AMC 8, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2025 AMC 8 solutions, or check the answer key.
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Difficulty rating: 720
4.
Lucius is counting backward by s. His first three numbers are and What is his th number?
Video solution:
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Written solution:
There will be gaps between his first number and his th number. Each gap has size
So, he will subtract a total of from leaving an answer of which is choice B.
Problem 4 in Other Years
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