# Probability computer

Author: mathforces
Problem has been solved: 36 times

Русский язык | English Language

The user entered 4 positive integer numbers into the computer. The computer, based on these numbers, can calculate the probability that the sum of some two of these numbers is greater than $k$, less than $k$, or equal to $k$. It turned out that these probabilities are equal for $k = 9$. Find the sum of the different possible values for the product of the four numbers that you drive in.