1975 AHSME Problems/Problem 10
Problem
The sum of the digits in base ten of , where is a positive integer, is
Solution
We see that the result of this expression will always be in the form Multiplying these together yields: This works because of the way they are multiplied. Therefore, the answer is .
See Also
1975 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 9 |
Followed by Problem 11 | |
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