Concept:Use logical deduction to arrange boxes based on given positions and fruit counts, then find the number of apples.
Explanation:1. Topmost box (1) has 20 oranges. Bottommost box (7) has 60 fruits.
2. Melons have 70 fruits. Bananas are two boxes above melons, and apples are just above bananas.
Possible cases: (a) Apples at 2, Bananas at 3, Melons at 5; (b) Apples at 3, Bananas at 4, Melons at 6.
3. Kiwi is just above mango. Only case (a) leaves a consecutive pair (6,7) for Kiwi and Mango. Case (b) has no consecutive boxes left, so it is invalid.
4. Valid arrangement: Box1: Oranges (20), Box2: Apples, Box3: Bananas, Box4: Cherries (30), Box5: Melons (70), Box6: Kiwi, Box7: Mango (60).
5. Remaining fruit counts: 10, 40, 50. The box with 50 is just above the box with 10. The only adjacent empty pair is (Box2, Box3). So Box2 gets 50, Box3 gets 10, and Box6 gets 40.
6. Therefore, Apples in Box2 have 50 fruits.
Answer:50 (Option B)