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Revision as of 21:52, 3 July 2013
Problem
At a competition with players, the number of players given elite status is equal to
. Suppose that
players are given elite status. What is the sum of the two smallest possible values of
?
Solution
We start with . After rearranging, we get
.
Since is a positive integer,
must be in the form of
for some positive integer
. From this fact, we get
.
If we now check integer values of N that satisfy this condition, starting from , we quickly see that the first values that work for
are
and
, giving values of
and
for
, respectively. Adding up these two values for
, we get
See also
2011 AMC 12A (Problems • Answer Key • Resources) | |
Preceded by Problem 18 |
Followed by Problem 20 |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | |
All AMC 12 Problems and Solutions |
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