SOLUTION: There are 40 people in a room. 23 are wearing jeans, 17 are wearing a T-shirt, and 12 are wearing both jeans and a T-shirt. If a person is selected at random, then find the probabi

Algebra ->  Permutations -> SOLUTION: There are 40 people in a room. 23 are wearing jeans, 17 are wearing a T-shirt, and 12 are wearing both jeans and a T-shirt. If a person is selected at random, then find the probabi      Log On


   



Question 728968: There are 40 people in a room. 23 are wearing jeans, 17 are wearing a T-shirt, and 12 are wearing both jeans and a T-shirt. If a person is selected at random, then find the probability that they are wearing jeans but not a T-shirt. Answer in fraction form and reduce.
Answer by solver91311(24713) About Me  (Show Source):
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If 23 are wearing jeans, and 12 are wearing jeans and a t-shirt, then 23 - 12 = 11 are wearing jeans but not a t-shirt. There are 40 people to choose from.

John

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