2024 AMC 10A Problem 20AMC 10 Step by Step
Name: Date: September 13, 2026
Number Properties · difficulty 4 of 5 · about 7 min · position P16-20
Let be a subset of such that the following two conditions hold:
- If and are distinct elements of , then
- If and are distinct odd elements of , then
What is the maximum possible number of elements in ?
- A)
- B)
- C)
- D)
- E)