Question

Question #45224

Answer 1

`2^25`

Explanation:

If it were only one question, there would be `2 = 2^1` F-T alternatives, and thus, answer keys.

If there were 2 questions, there would be `2^1 times 2^1 = 2^2` alternatives.

If you are comfortable with that line of argument, you see that for 25 questions it grows rapidly to `2^25`.