Hi everyone ,plz help me with question. a lot thanks

A fair white die has 1, 2, 3, 4, 5, 5 printed on its 6 faces, and a fair red die has

1, 1, 2, 3, 4, 5 printed on its 6 faces.

(a) The white die is rolled once and the red die is rolled twice. Use the event

composition method to find the (single) probability that the number coming up on the

white die is less than 4, or neither of the numbers coming up on the red die is 1.

(b) The two dice are rolled together repeatedly until different numbers come up. Find

the probability that the total of the numbers coming up on the final roll of the two dice

is exactly 6.