1962 AHSME Problems/Problem 8: Difference between revisions
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==Solution== | ==Solution== | ||
Just take <math>\frac{1(n-1)+(1-\frac{1}{n})}{n}</math>. You get <math>\frac{n-1+1-\frac{1}{n}}{n}</math>, which is just <math>\frac{n-\frac{1}{n}}{n}</math>, which is just <math>\boxed{D}</math> | Just take <math>\frac{1(n-1)+(1-\frac{1}{n})}{n}</math>. You get <math>\frac{n-1+1-\frac{1}{n}}{n}</math>, which is just <math>\frac{n-\frac{1}{n}}{n}</math>, which is just <math>\boxed{D}</math> | ||
==See Also== | |||
{{AHSME 40p box|year=1962|before=Problem 7|num-a=9}} | |||
[[Category:Introductory Algebra Problems]] | |||
{{MAA Notice}} | |||
Latest revision as of 21:14, 3 October 2014
Problem
Given the set of 
numbers; 
, of which one is 
and all the others are 
. The arithmetic mean of the numbers is:
Solution
Just take 
. You get 
, which is just 
, which is just 
See Also
| 1962 AHSC (Problems • Answer Key • Resources) | ||
| Preceded by Problem 7 |
Followed by Problem 9 | |
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