Question Detail

MTH 101 Set Theory Objective Question
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Question

In a survey, 120 students: 70 like tea, 50 like coffee, 30 like both. How many like tea or coffee?
Options
A 90
Correct Answer
B 100
C 120
D 80
Correct Answer

Option A is the correct answer.

Detailed Explanation

n(Tea ∪ Coffee) = 70 + 50 − 30 = 90.

Hint

Union formula: sum minus intersection.

Question Info

Course: MTH 101
Topic: Set Theory
Type: Objective
Difficulty: Not specified
Question 20 of 696
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