2016 AMC 10B Problem 5
Below is the professionally curated solution for Problem 5 of the 2016 AMC 10B, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2016 AMC 10B solutions, or check the answer key.
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Difficulty rating: 900
5.
The mean age of Amanda's cousins is and their median age is What is the sum of the ages of Amanda's youngest and oldest cousins?
Solution:
The total of the four cousin ages is . Since the median is , the two middle ages have average , so their sum is .
Therefore the youngest and oldest ages sum to .
Thus, the correct answer is D.
Problem 5 in Other Years
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