Answer: 11
Explanation:
Given: The number of boxes of orange juice = 32
The number of boxes of apple juice = 56
Then, the total number of boxes of juices =

Since, each shelf in the cupboard can hold 8 boxes of juice.
Then, the least number (n) of shelves needed for all the juice boxes is given by :-

Hence, the least number of shelves needed for all the juice boxes =11.