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In how many different ways can 9 men be ...

In how many different ways can 9 men be selected from 15 men so as to always (i)exclude 3 particular men ,(ii) include 3 particular men?

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The correct Answer is:
(i) 220 , (ii) 924
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CHHAYA PUBLICATION-PERMUTATION AND COMBINATION -EXERCISE 7B ( Short Answer Type Questions )
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  9. If 20 straight lines be drawn in a plane , no two of them being parall...

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  10. If 10 parallel lines in a plane are intersected by a family of anothe...

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  11. There are 15 points in a plane of which 4 points lie in one stright li...

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  19. Prove that the total number of selections that can be made out of the ...

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