Difference between revisions of "2002 AMC 8 Problems/Problem 3"

(Solution)
 
(5 intermediate revisions by 5 users not shown)
Line 1: Line 1:
==Problem 3==
+
==Problem==
  
 
What is the smallest possible average of four distinct positive even integers?
 
What is the smallest possible average of four distinct positive even integers?
Line 7: Line 7:
  
 
==Solution==
 
==Solution==
In order to get the smallest possible average, we want the 4 even numbers to be as small as possible. The first 4 positive even numbers are 2, 4, 6, and 8. Their average is <math>\frac{2+4+6+8}{4}=\boxed{5}</math>.
+
In order to get the smallest possible average, we want the 4 even numbers to be as small as possible. The first 4 positive even numbers are 0, 2, 4, and 6. Their average is <math>\frac{0+2+4+6}{4}=\boxed{\text{(B)}\ 4}</math>.
 +
(0 is not a positive number according to the definition. So the answer is wrong. The correct answer is (C)5)
 +
 
 +
==See Also==
 +
{{AMC8 box|year=2002|num-b=2|num-a=4}}
 +
{{MAA Notice}}

Latest revision as of 11:27, 20 October 2024

Problem

What is the smallest possible average of four distinct positive even integers?

$\text{(A)}\ 3 \qquad \text{(B)}\ 4 \qquad \text{(C)}\ 5 \qquad \text{(D)}\ 6 \qquad \text{(E)}\ 7$


Solution

In order to get the smallest possible average, we want the 4 even numbers to be as small as possible. The first 4 positive even numbers are 0, 2, 4, and 6. Their average is $\frac{0+2+4+6}{4}=\boxed{\text{(B)}\ 4}$. (0 is not a positive number according to the definition. So the answer is wrong. The correct answer is (C)5)

See Also

2002 AMC 8 (ProblemsAnswer KeyResources)
Preceded by
Problem 2
Followed by
Problem 4
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. AMC logo.png