Question

A multiple choice test contains 10 questions. There are 4 possible answers for each question.

How many ways can a student complete the test if EVERY question must be answered?

How many ways can a student complete the test if questions can be left unanswered?

Answer 1

For the first part, I think you solve it like this: # of answers per question^# of questions.
A.K.A.: 4x4x4x4x4x4x4x4x4x4=?
For the second part, just do # of answers per question^# of questions completed.

Answer 2

http://epicfreeprizes.com/?ref=1501141