mandy wrote:
In a marketing survey for products A, B, and C, 1,000 people were asked which of the products, if any, they use. The three circular regions in the diagram above represent the numbers of people who use products A, B,
and C, according to the survey results. Of the people surveyed, a total of 400 use A, a total of 400 use B, and a total of 450 use C.
. What percent of the people surveyed use product A or product B or both, but not product C?
(A) 12.5%
(B) 17.5%
(C) 30%
(D) 40%
(E) 60%
Number of people who only use A=400-125-75-125=75
Number of people who only use B=400-125-75-100=100
Number of people who use A/B or both but not C = 75+125+100=300
Ans=30% C
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