Kognity Airlines is known for its punctuality across the world. The probability, P(D), that one of its flights departs on time is 0.91, the probability, P(A), that it arrives on time is 0.94, and the probability that it both departs and arrives on time is 0.87. Find the probability that:
(i) the flight departed on time given that it arrives on time.

(ii) the flight arrived on time given that it did not depart on time.