Question
How many straight lines can be formed from 9 points out of which 4 are colinear?
More Permutation and combination Questions
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- A man has 15 friends out of which 7 are his relatives. In how many ways can he invite his 9 friends in which at least 5 must be his relatives?
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- From the letters of the word SNAPCAT (letters: S, N, A, P, C, A, T; where A appears twice), how many distinct 7-letter arrangements can be formed such that...
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