Question
| ( A ) 121 |
( B ) 123 |
( C ) 125 |
( D ) 127 |
( E ) 129 |
Hint
Solution
Origin/Difficulty
2007 AMC 12A, #25/ Hard - 2.55% of answering students correctly answered the question
Classifications
NCTM Standard: Algebra -- Understand patterns, relations, and functions.
Mathworld.com Classification: Foundations of Mathematics > Set Theory > Sets