Math miscellaneousEasy
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
A.5040
B.6210
C.385
D.1110
Solution
10C1 + 10C2 + 10C3 + 10C4
= 10 + 45 + 120 + 210 = 385
= 10 + 45 + 120 + 210 = 385
Create a free account to view solution
View Solution FreeMore Math miscellaneous Questions
Let the sum of the first three terms of an A.P. be 39 and the sum of its last four terms be 178. If the first term of th...Let and . Then depends on...If a1, a2, ......., a2n+1 are in G.P., then is equal to (where each ai > 0) -...If a ∈ R and the equation -3(x - [x])2 + 2 (x - [x]) + a2 = 0 (where [x] denotes the greatest integer ≤ x) h...Let F(x) = , x > 0. If dx = F(k) - F(1), then one of the possible values of k, is...