1993 AMC 8 Problem 9
Attempt Problem 9 of the 1993 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1993 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
9.
Consider the operation defined by the following table:
For example, Then
Answer: D
Small hint:
Read from row column and from row column
Big hint:
Both inner values equal so compute from the table
Solution:
From the table, and
Then
Thus, the correct answer is D .
Problem 9 in other years
- 1985 AMC 8
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