In a survey, 50 people like apples, 40 like bananas, and 20 like both. How many

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Question: In a survey, 50 people like apples, 40 like bananas, and 20 like both. How many people like only bananas?

Options:

Correct Answer: 30

Solution:

The number of people who like only bananas is calculated as: Only Bananas = Total Bananas - Both = 40 - 20 = 20.

In a survey, 50 people like apples, 40 like bananas, and 20 like both. How many people like only bananas?

In a survey, 50 people like apples, 40 like bananas, and 20 like both. How many people like only bananas?

Step 1: Identify the total number of people who like bananas. This is given as 40.
Step 2: Identify the number of people who like both apples and bananas. This is given as 20.
Step 3: To find the number of people who like only bananas, subtract the number of people who like both from the total number of people who like bananas.
Step 4: Perform the calculation: 40 (total bananas) - 20 (both) = 20.
Step 5: The result shows that 20 people like only bananas.

Set Theory – Understanding the relationships between different groups, specifically how to calculate the number of individuals in overlapping sets.
Basic Arithmetic – Performing simple subtraction to find the number of individuals in a specific category.