Answer with explanation:
There are few number of white ball in 10 boxes.
Total number of Black balls in the box=60
So, we have to write number 60 in such a way that, such that it can be represented as sum of ten different digits.
That is the only way by which we can distinguish between ten boxes.
60 =0 +1+2+3+4+6+8+10+12+14
Place these balls in ten different boxes.
So, by this way we can distinguish between boxes.
