There is a spinner with 15 equal areas, numbered 1 through 15. If the spinner is spun one time, what is the probability that the result is a multiple of 5 and a multiple of 2?

Answer 1

A number is a multiple of 5 and a multiple of 2 if it is a multiple of 10. The numbers on the spinner that are multiples of 10 are 10 and 5.

Therefore, there are 2 favorable outcomes out of 15 total outcomes, so the probability is:

2/15 = 0.1333 or 13.33%