Difference between revisions of "1993 AJHSME Problems/Problem 20"
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Latest revision as of 23:11, 4 July 2013
Problem
When 
is expressed as a single whole number, the sum of the digits is
Solution
This can be generalized into 
is equal is 
nines followed by the digits 
. Then is equal to 
nines followed by . The sum of the digits is equal to 
.
See Also
| 1993 AJHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 19 |
Followed by Problem 21 | |
| 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 AJHSME/AMC 8 Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
