#1**+1 **

Here's just the first one:

80 members would buy one, the other, or both. That means 125 - 80 , or 45 members would not buy either type.

The rest of the numbers I found by subtracting the total from the other numbers in the row or column.

So the probability that a randomly selected gym member would buy passion fruit but not tropical grape is...

19 / 125 = 15.2% ≈ 15%

hectictar
Dec 7, 2017