Question
A survey of 200 people in a community who watched at least one of the three channels – BBC, CNN and DD-showed that 80% of the people watched DD, 22% watched BBC, and 15% watched CNN.
If 5% of people watched DD and CNN. 10% watched DD and BBC, then what percentage of people watched BBC and CNN only?
If 5% of people watched DD and CNN. 10% watched DD and BBC, then what percentage of people watched BBC and CNN only?
Answer: Option A
:
A
Since 80% watch DD, hence 20% do not watch DD. Let those who watch BBC and CNN only be x%, then 12 + 10 –x = 20
x = 2
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:
A
Since 80% watch DD, hence 20% do not watch DD. Let those who watch BBC and CNN only be x%, then 12 + 10 –x = 20
x = 2
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