How many ways are there to distribute 4 identical oranges and 6 distinct apples into 5 distinct boxes
I know you find number of ways for apples which is 5^6.
The solution tells me that the ways for oranges is 8 choose 4.
You then multiply both of them together to get solution, which is 1,093,750
My question is....where does 8 come from, for 8 choose 4???