Two 6-sided dice, one red and one green, are rolled. What is the probability that the red die shows an odd number and the green die shows a number that is a

one out of two times one out of three   or  one sixth

Red Die

Odd numbers: 1, 2, 3, 4, 5, 6

Probability: 3 / 6 = 1 / 2

Green Die

Perfect Squares: 1, 2, 3, 4, 5, 6

1 is a perfect square as √1 = 1

4 is a perfect square as √4 = 2

Probability: 2 / 6 = 1 / 3

1 / 2 * 1 / 3 = 1 / 6