Question
A group of 30 people take either tea or coffee. If 12 people do not take tea and 15 people take coffee, then how many people take tea?(1) 18(2) 16(3) 15(4) 12
Step 1
Step 1: Let's denote the set of people who take tea as $T$ and the set of people who take coffee as $C$. Show more…
Show all steps
Your feedback will help us improve your experience
Saurabh Chandra and 83 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A survey revealed that 50 people liked coffee and 40 liked tea. Both these figures include 35 who liked both coffee and tea. Finally, ten did not like either coffee or tea. How many people in all responded to the survey?
Essentials of Logic and Set Theory
Essentials of Set Theory
In a group of 70 people, 37 like coffee, 52 like tea and each person likes at least one of the two drinks. How many people like both coffee and tea?
Sets
Subsets
ORDERING SNACKS How many dozen doughnuts must be ordered for a meeting if 156 people are expected to attend, and each person will be served one doughnut?
Whole which of Numbers
Dividing Whole Numbers
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD