Difference between revisions of "1955 AHSME Problems/Problem 3"
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| − | <math>(A)</math> | + | == Problem== |
| + | If each number in a set of ten numbers is increased by <math>20</math>, the arithmetic mean (average) of the ten numbers: | ||
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| + | <math> \textbf{(A)}\ \text{remains the same}\qquad\textbf{(B)}\ \text{is increased by 20}\qquad\textbf{(C)}\ \text{is increased by 200}\\ \textbf{(D)}\ \text{is increased by 10}\qquad\textbf{(E)}\ \text{is increased by 2} </math> | ||
| + | ==Solution 1== | ||
Revision as of 11:40, 4 May 2020
Problem
If each number in a set of ten numbers is increased by 
, the arithmetic mean (average) of the ten numbers:
