In the survey, 160 consumers were asked regarding their buying preferences concerning the product that is sold in market under three labels. The results were as follows.
13 buy only those sold under label A.
22 buy only those sold under label B.
28 buy only those sold under label C.
14 buy only those sold under labels A and B.
11 buy only those sold under labels A and C.
15 buy only those sold under labels B and C.
10 buy the product sold under all three labels.
How many of consumers surveyed purchase the product sold under labels A and B but not c?