Question

There is a spinner with 12 equal areas, numbered 1 through 12. If the spinner is spun one time, what is the probability that the result is a multiple of 3 and a multiple of 4?

Answer 1

Multiples of 3: {3,6,9,12}. Multiples of 4: {4,8,12}. The only number that is both is 12, so 1 favorable outcome out of 12 possible.

Probability = 1/12.