Question

In a raffle, tickets numbered 1 to 30 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 7? Write your answer as a decimal rounded to the nearest thousandth.

Answer 1

There are 4 multiples of 7 between 1 and 30, so there is 4 out of 30 tickets that are a multiple of 7. There is a 0.133 chance of pulling a ticket that has a number which is a multiple of 7.