MathDB
Find the number of finite sequences

Source: MTRP 2017 Class 11-Multiple Choice Question: Problem 8 :-

May 25, 2020
SequenceSummationalgebra

Problem Statement

How many finite sequances x1,x2,⋯ ,xmx_1,x_2,\cdots,x_m are there such that xi=1x_i=1 or 2 and ∑i=1mxi=10\sum \limits_{i=1}^mx_i=10 ?
[*] 89 [*] 73 [*] 107 [*] 119
Back to ProblemsView on AoPS