In a survey,80%people like Coke and 85%like pepsi, 75%people like both the drinks. If 45 people do not like both the drinks, find the total number of people in the survey.
Here is Venn Diagram to help:
Question wording is a bit unclear 'if 45 people do not like both drinks' could represent the 5 + 10 % in the circles
so either 10% =45 or 15% = 45 Let me know what you find ! ~EP