1. On any given day the probability that Björn has an avocado with his lunch is $0.39$, while the probabilities that he has a bacon butty or a piece of carrot cake are $0.32$ and $0.44$ respectively. He never has all three items on the same day, but the probability that he has at least one of them is $0.91$.

The probability that he has exactly two of the three items is the same regardless of which two items those are.

Find the probability that on a given day Björn has

(i) exactly one of the three items

(ii) a bacon butty but not a piece of carrot cake.