Answer:
4 boxes
Explanation:
Given
Represent Dark Chocolate with D and Milk Chocolate with M
pieces
pieces

First, we need to determine the quantities in e boxes of dark chocolate.


Subtract this quantity from the total; This gives the quantities of milk chocolate

pieces
Lastly, divide this by the 20 pieces (of milk chocolate) to get the number of boxes.


Since, we're getting the fewer boxes, we have to round down
