Q181
ReasoningVenn Diagrams & Set Theory
In a hotel 60% had vegetarian lunch while 30% had non-vegetarian lunch and 15% had both types of lunch. If 96 people were present, how many did not eat either type of lunch?
- a.20
- b.24
- c.26
- d.28
Answer: (B) 24
People who had at least one type = 60 + 30 − 15 = 75%, so 25% had neither. 25% of 96 = 24. Forgetting to subtract the 15% overlap would wrongly give 10%.