The pie chart represents 400 fruits on display in a grocery store.

The chart is divided into four sections, each representing a different fruit: banana, orange, pawpaw, and apple. The banana and orange sections are each 100 degrees, and the pawpaw section is 115 degrees. Since the total number of degrees in a circle is 360, the apple section must be 360 - 100 - 100 - 115 = 45 degrees.

Since the pie chart represents 400 fruits in total, each degree of the pie chart represents 400/360 = 10/9 fruits. Therefore, the number of apples in the store is represented by the size of the apple section of the pie chart, which is 45 degrees. So, there are 45 x (10/9) = 50 apples in the store.