The number of ways in which a man c...

The number of ways in which a man can invite one or more of his 8 friends to dinner is

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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )

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a man has 4 friends , in how many ways can he inivite one or ...
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The number of ways in which a man can invite one or more of hi...
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There are 10 lamps in a hall . Each one of them can be swith...
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Each of the four questions in a multiple choice test has 4 pos...
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In an examination there are there are three multiple choice qu...
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The number of all three element subsets of the {a1,a2 ,a3 ,… an}...
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The number all three element ofsubsets of the set A = {a1 ,a2 , . ....
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If one quarter of all three element subsets of the set A = { a1...
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The number of subsets of {1,2,3,. . . .9} conatining at least one ...
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If a set A has 5 elements , then the number of ways of selectin...
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