Difference between revisions of "2016 UNM-PNM Statewide High School Mathematics Contest II Problems/Problem 6"
(→Solution) |
(→Solution) |
||
Line 17: | Line 17: | ||
So the answer is <math>\fbox{9}</math> | So the answer is <math>\fbox{9}</math> | ||
+ | -andliu766 | ||
== See also == | == See also == |
Latest revision as of 20:02, 6 August 2023
Problem
For a positive integer let be the sum of the digits of . For example, , while . Let and define
Find .
Solution
We can plug in the function 4 times. We get that
So the answer is -andliu766
See also
2016 UNM-PNM Contest II (Problems • Answer Key • Resources) | ||
Preceded by Problem 5 |
Followed by Problem 7 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
All UNM-PNM Problems and Solutions |
[[Category:]]