CAT Quantitative Ability Questions | CAT Set Theory questions
CAT/1997
Question . 22
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 the people watched DD and CNN, 10% watched DD and BBC, then what per cent of the people watched BBC and CNN only?
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Method of solving this CAT Quantitative Ability Question from Set Theory question
