Guichard-Combinatorics-Graph-Theory · Problem 2.1.2

Inclusion-Exclusion

Mathematics — Probability · inclusion-exclusion-integer-solutions

Problem

Find the number of integer solutions to x1+x2+x3+x4=25x_1 + x_2 + x_3 + x_4 = 25, 1≤x1≤61 \leq x_1 \leq 6, 2≤x2≤82 \leq x_2 \leq 8, 0≤x3≤80 \leq x_3 \leq 8, 5≤x4≤95 \leq x_4 \leq 9.

Related theory

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