Q. The credit department of Lion's Department Store in California, reported which 22 percent of their sales are cash or check, 28 percent are paid with a credit card and 50 percent with a debit card. Twenty percent of the cash or check purchases, 90 percent of the credit card purchases, and 60 percent of the debit card purchases are for more than $50.
Mr. Tim Smith just purchased a new tux which cost $120. Illustrate what is the probability he paid cash or check?