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Question
Use the given Venn-diagram to find :
A
Solution
A = {1, 5, 6, 7, 9}
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In a survey it was found that 21 people liked product A, 26 liked product B and 29 liked product C. If 14 people liked products A and B, 12 people liked products C and A, 14 people liked products B and C and 8 liked all the three products. Find how many liked product C only.
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