2006 AMC 10A Problem 4
Below is the professionally curated solution for Problem 4 of the 2006 AMC 10A, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2006 AMC 10A solutions, or check the answer key.
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Difficulty rating: 1030
4.
A digital watch displays hours and minutes with am and pm. What is the largest possible sum of the digits in the display?
Solution:
The minutes run from to so the largest digit sum for the minutes is at minutes.
For the hour, the single digit beats from The largest total is occurring at
Thus, the correct answer is E.
Problem 4 in Other Years
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