Can anybody give me a hint how to approach the following problem, please?
I actually am having a hard time stating the problem. I think an example would help you understand what the problem is.
Suppose I have 5 numbers each can be max 3 digits. I sum them together. What's the probability of the sum having the last 3 digits 500?
Example of 5 numbers having the last 3 digits 500 are (100, 100, 100, 100, 100) and (0, 0, 0, 0, 1500).