2. At least 3 statements among these 2n+1 are false.

3. At least 5 statements among these 2n+1 are true.

...

2n. At least (4n-1) statments among these 2n+1 are false.

2n+1. At least (4n+1) statements among these 2n+1 are true.

How many statements are true? Which?