Question

Find the total of number of ways of answering 4 multiple choice questions that have 3 choices each.

Answer 1

There are 4 multiple choice questions that have 3 choices each.

The first question can be answered in 3 different ways.

The second question can be answered in 3 different ways.

The third question can be answered in 3 different ways.

And the fourth question can also be answered in 3 different ways.

We have to choose the number of ways of answering the first, second, third, and fourth questions.

So, total number of ways of answering 4 questions $=3\times 3\times 3\times 3=(3{)}^4=81$