In a survey of 100 people, 60 like tea, 50 like coffee, and 30 like both. How ma
Practice Questions
Q1
In a survey of 100 people, 60 like tea, 50 like coffee, and 30 like both. How many people like either tea or coffee?
80
70
50
30
Questions & Step-by-Step Solutions
In a survey of 100 people, 60 like tea, 50 like coffee, and 30 like both. How many people like either tea or coffee?
Step 1: Identify the number of people who like tea. This is given as 60.
Step 2: Identify the number of people who like coffee. This is given as 50.
Step 3: Identify the number of people who like both tea and coffee. This is given as 30.
Step 4: To find the number of people who like either tea or coffee, use the formula: (Number of tea lovers) + (Number of coffee lovers) - (Number of people who like both).
Step 5: Plug in the numbers: 60 (tea) + 50 (coffee) - 30 (both) = 80.
Step 6: The result, 80, is the number of people who like either tea or coffee.
