Difference between revisions of "1987 AHSME Problems/Problem 29"
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\textbf{(D)}\ 21 \qquad | \textbf{(D)}\ 21 \qquad | ||
\textbf{(E)}\ 23 </math> | \textbf{(E)}\ 23 </math> | ||
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| + | ==Solution== | ||
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| + | <math>(A)</math> | ||
== See also == | == See also == | ||
Revision as of 16:34, 20 January 2018
Problem
Consider the sequence of numbers defined recursively by 
and for 
by 
when 
is even
and by 
when is odd. Given that 
, the sum of the digits of is
Solution
See also
| 1987 AHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 28 |
Followed by Problem 30 | |
| 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 • 26 • 27 • 28 • 29 • 30 | ||
| All AHSME Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
