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Question: Answered & Verified by Expert
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 to be elected. If a voter votes for at least one candidate, then the number of ways in which he can vote, is
MathematicsPermutation CombinationJEE Main
Options:
  • A 6210
  • B 385
  • C 1110
  • D 5040
Solution:
2331 Upvotes Verified Answer
The correct answer is: 385
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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