We have: 4 apples + 6 bananas = 1.56

                9 apples + 7 bananas = 2.60

=> 4 apples + 6 bananas + 9 apples + 7 bananas = 1.56 + 2.60

13 apples + 13 bananas = 4.16

=> 1 apple + 1 banana = \(4.16\div13=0.32\)

So the answer is: 0.32

P/s: Sorry I don't know how to do the euro sign.