GATE | Sudo GATE 2020 Mock II (10 January 2019) | Question 10

What is the number of solutions for the inequality- x_1 + x_2 + x_3 \leq 11 where x_1, x_2,x_3 are integers greater than 0 ?
(A) 78
(B) 182
(C) 364
(D) 440

Answer: (C)

Explanation: Refer- PnC

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