QUESTION:
Consider X = {x/x is a prime number less than 20} and Y = { counting numbers less than 5}. What is a universal set?
a. {0, 1, 2, 3, 4, 5, 7, 11, 13, 17, 19}
b. { 1, 2, 3, 4, 5, 7, 9, 11, 13, 17, 19}
c. {0, 1, 2, 3, 4, 5, 7, 11, 13, 15, 19}
d. {1, 2, 3, 4, 5, 7, 11, 13, 17, 19}
In a school, 200 students are randomly selected. 140 like tea, 120 like coffee and 80 like both tea and coffee. How many students like neither tea nor coffee?
a.
60
b.
80
c.
40
d.
20
Answers
Answered by
1
Answer:
60
Step-by-step explanation:
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