In a survey it was found that 84% of those surveyed liked mustard : Crackverbal Support

In a survey it was found that 84% of those surveyed liked mustard Print

Modified on: Tue, 12 Oct, 2021 at 4:27 PM

Concept: The question tests on the basics of Overlapping sets

Solution:

By the principle of Set Theory, the Total = A + B - A ∩ B + (A U B)'

Here A = Those who likes mustard = 84% of 100 = 84

Here B = Those who likes mayo = 68% of 100 = 68

(A U B)' = Those who don't like either mustard or mayo = 0

Therefore A ∩ B = 84 + 68 - 100 = 152 - 100 = 52

Option B

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In a survey it was found that 84% of those surveyed liked mustard Print

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