The correct answer is:
11 containers.
Step-by-step explanation:
We want 96 boxes total. Each container can hold either 10 small boxes or 8 large boxes. To solve this, we want to subtract multiples of 10 from 96 until we have a number that is divisible by 8. This is because we cannot have a fraction of a container full of either big or small boxes.
96-10(1) = 96 - 10 = 86; this is not divisible by 8.
96-10(2) = 96 - 20 = 76; not divisible by 8.
96-10(3) = 96 - 30 = 66; not divisible by 8.
96-10(4) = 96 - 40 = 56; this is divisible by 8.
This means there are 4 containers of small boxes, for 4(10) = 40 boxes, and 56/8 = 7 containers of large boxes, for 56 boxes. This is a total of 4+7 = 11 boxes for our 40+56 = 96 boxes.