At an election, a voter may vote for any number of candidates not greater than the number of candidates to be elected. There are 10 candidates and 4 are to be elected. If a voter votes for atleast 1 candidate, then the number of ways in which he can vote is

Maths Questions, Permutation & Combination Questions / By

Solution :

Total Number of ways = \(^{10}C_1\) + \(^{10}C_2\) + \(^{10}C_3\) + \(^{10}C_4\)

= 10 + 45 + 120 + 210

= 385

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