Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Here, S = {1, 2, 3, 4,....,  19, 20}.

 

Let E = event of getting a number which is a multiple of 3 or 5 = {3, 6, 9, 12, 15, 18, 5, 10, 20}.

 

Answered by  | 4th Jun, 2014, 03:23: PM