Answer
12 ways
Work Step by Step
You have a sequence of selections:
(1) ... select 1 shirt out of 3 .... in 3 ways
(2) ... select 1 tie out of 2 .... in 2 ways
(3) ... select 1 jacket out of 2 .... in 2 ways
By the Fundamental Counting Principle:
Total = 3$\times$2$\times$2 = 12 ways
