Answer:
15 people don't like either song.
Step-by-step explanation:
- First, take 35 away from both preferences to work out the amount of people who ONLY LIKE 1 GENRE.
FROCKS: 65 - 35 = 30 people
MODERN: 55 - 35 = 20 people
- This means that 30 people like frock, 20 people like modern and 35 like both; this means 85 people liked at least 1 of the 2 genres.
- Take this away from 100 to work out how many people liked NOTHING:
100 - 85 = 15 people
