Question

In a group of 60 persons, 35 likes coffee. Out of this group, if one person is chosen at random, what
is the probability that he or she does not like coffee.
A)7/12 B) 5/12 c) 5/7 d) 3/12
Pls someone answer

Answer 1

Answer:

A) 7/12

Step-by-step explanation:

As Probability = No. of person like coffee/ Total

no. of person

= 35/ 60

= 7/12

Answer 2

Answer:

Spamming is the use of messaging systems to send an unsolicited message to large numbers of recipients for the purpose of commercial advertising, for the purpose of non-commercial proselytizing, or for any prohibited purpose.

Step-by-step explanation:

ANSWER

Let C denote the set of people who like coffee, and T denote the set of people who like tea

n(C∪T)=70,n(C)=37,n(T)=52

We know that:

n(C∪T)=n(C)+n(T)−n(C∩T)

∴70=37+52−n(C∩T)

⇒70=89−n(C∩T)

⇒n(C∩T)=89−70=19

Thus, 19 people like both coffee and tea