In a Senate of n Senators, itemized lists of all possible k member subcommittees were prepared.
Prove that for any k ≥ 3 the number of possible distinct subcommittees is even and the Senators are evenly divided between subcommittees with either an odd or even number of participants.
Why the constraint that k is at least 3?
(In reply to
True and Fal;se (possible spoiler) by Steve Herman)
Read the puzzle again
You erred by your interpretation of n = # of Senators , all of them. & k = size of the subcommittee.
Please reconsider your answer accordingly, part of it is correct.