Question

When rolling 10 dice with 2020 faces each (numbered 1 to 20), how many ways are there of rolling a total sum of 15?

Answer 1

Here is all of the ways to get 15 out of 10 dice:
1*9+6=15
1*8+2+5=15
1*8+3+4=15
1*7+2*2+4=15
1*7+2*3+2=15
1*6+2*3+3=15
1*5+2*5=15