2020 AMC 10A Problems/Problem 2
Contents
Problem
The numbers and
have an average (arithmetic mean) of
. What is the average of
and
?
Solution
The arithmetic mean of the numbers and
is equal to
. Solving for
, we get
. Dividing by
to find the average of the two numbers
and
gives
.
Video Solution
~IceMatrix
https://www.youtube.com/watch?v=7-3sl1pSojc
~bobthefam
See Also
2020 AMC 10A (Problems • Answer Key • Resources) | ||
Preceded by Problem 1 |
Followed by Problem 3 | |
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All AMC 10 Problems and Solutions |
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