Difference between revisions of "1955 AHSME Problems/Problem 3"

m (Undo revision 89804 by Dli00105 (talk))
(Tag: Undo)
Line 1: Line 1:
<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:
 +
 
 +
<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 $20$, the arithmetic mean (average) of the ten numbers:

$\textbf{(A)}\ \text{remains the same}\qquad\textbf{(B)}\ \text{is increased by 20}\qquad\textbf{(C)}\ \text{is increased by 200}\\ \textbf{(D)}\ \text{is increased by 10}\qquad\textbf{(E)}\ \text{is increased by 2}$

Solution 1