Question

There are 20 people in a room. 4 of them are people you know. When 2 people are selected at random at the same time, what is the probability that at least one of them is someone you know?

(this is a basic question but its 4am, my brain isnt working properly)

Answer 1

4/20=1/5 or 20% or 0.2

Explanation:

if u write 4/20 simplify it which becomes 1/5

u can write in percentage or in decimal depending on what the question wants