In a survey of a community of 48 people, it was found that 30 people liked product X, 25 people liked product Y and 30 liked product Z. If 17 people liked product X and Y, 15 people liked Y and Z, 14 people liked Z and X and 9 people liked all the three products. Then the number of people who like exactly one product, is (Given that each person like atleast one of the product X, Y or Z)
10
15
20
30
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