At an election, a voter may vote for any number of candidates, not greater than the number to be elected. There are 10 candidates and 4 are of be elected. If a voter votes for at least one candidate,

Question

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

Options:

Answer:

C

Solution:

$^{0} C_{1} +^{10} C_{2} +^{10} C_{3} +^{10} C_{4}$ $= 10 + 45 + 120 + 210 = 385$

TestHub · Accepted Answer

0 C 1 ​ + 10 C 2 ​ + 10 C 3 ​ + 10 C 4 ​ = 10 + 45 + 120 + 210 = 385

Mathematics - Permutation & Combination Question with Solution | TestHub

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