In a group of 60 people, 27 like tea, 42 like coffee, and 5 like neither. How many like both?
Q1. In a group of 60 people, 27 like tea, 42 like coffee, and 5 like neither. How many like both?
Answer: 14
Explanation: Total = 60, like tea or coffee = 60 - 5 = 55. Using the inclusion-exclusion principle: 27 + 42 - Both = 55, so Both = 14.