When a die is rolled and a coin(with heads and tails) is tossed,find the probability of obtaining,

Question

(a). Tails and an even number.
solution.
A={HH,TT,HT,HT}
B={HH,TH}
(b). A number greater than 3
SOLUTION.
let event C=(AuB)
P(C)=P(AuB)=P(A)+P(B)-P(AnB)
=3/4