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 ? (a) 2% (b) 5% (c) 8.5 % (d) undeterminable

Answer 1

may be it's "D" undeterminable I'm not sure