Question

Trevor bought 3 new pairs of jeans and 2 new sweaters for school. How many different clothing combinations can he make?

Answer 1

He can make `6` combinations of clothes.

Explanation:

I assume he has to wear a sweater and trousers. He can choose from 3 pairs of jeans and 2 sweaters, so the number of combinations is `n=3*2=6`

Answer 2

`6` combinations

Explanation:

For each of `3` pairs of jeans Trevor could wear one of `2` sweaters,
giving `3xx2=6` combinations

The above (of course) assumes that Trevor wears (exactly) one pair of new jeans and (exactly) one new sweater.
(If he's allowed to wear no new jeans or multiple layers of new jeans, plus no new sweaters or multiple layers of new sweaters then there are `8xx4 = 32` possible combinations).