Question

A group of 55 pupils were asked if they owned a phone or a tablet.

11 people are known to own both

18 said they only owned a tablet

34 said they owned at least a phone

A student is picked a random, what is the probability that the student doesn’t have a phone or tablet? Give your answer as a fraction in its simplest form.

Select your answer from the list below:

A: 3/63

B: 3/55

C: 11/55

D: 18/55

Answer 1

it's B

Explanation:

USE The venn diagram

11 said they own both devices so it will be in the middle

34 said they owned at least a phone

34-11 =23