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In a group of 500 persons, 300 take tea, 150 take coffee, 250 take cold drink, 90 take tea and coffee, 110 takes tea and cold drink, 80 take coffee and cold drink and 30 take none of the three drinks. The number of persons who take all the three drinks.

1 Answer

Hence (B) is the correct answer.
answered Jun 22, 2014 by thanvigandhi_1

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