One box contains 25 apples. How many apples are there in 17 boxes?

To find the total number of apples in 17 boxes, you multiply the number of apples in one box by the number of boxes. Since there are 25 apples in each box, you calculate the total by performing the multiplication:

25 apples/box × 17 boxes = 425 apples.

This calculation shows that by multiplying the number of apples per box by the total number of boxes, you arrive at 425 apples as the total. This is the correct answer, as it accurately reflects the mathematical operation required to determine the total number of apples given the quantity per box and the number of boxes.