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In a political survey, 78% of the politi...

In a political survey, 78% of the politicians favour at least one proposal, 50% of them are in favour of proposal A, 30% are in favour of proposal B, Band 20% are in favour of proposal C. 5% are in favour of all three proposals. what is the percentage of people favouring more than one proposal?

A

16

B

17

C

18

D

19

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The correct Answer is:
B
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DISHA PUBLICATION-SET THEORY-Practice Exercises (Expert Level)
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  3. Which one of the following is correct?

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  14. A survey was conducted of 100 people to find out whether they had read...

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  16. For non-empty sets A, B and C, the following two statements are given:...

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