News Channel Viewership
(CAT 1997)
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.
1. What is the maximum percentage of people who can watch all the three channels?
a. 12.5% 
b. 8.5% 
c. 15% 
d. Data insufficient
2. If 5% of people watched DD and CNN, 10% watched DD and BBC, then what percentage of people watched BBC and CNN only?
a. 2% 
b. 5% 
c. 8.5% 
d. Cannot be determined
3. Referring to the previous question, what percentage of people watched all the three channels?
a. 3.5% 
b. 0% 
c. 8.5% 
d. Cannot be determined
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