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Permutations and Combinations Test - 20

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Permutations and Combinations Test - 20
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    In a cricket championship, there are 36 matches. The number of teams, if each plays 1 match with other are
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  • Question 2
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    If n+2C8 : n –2P4 = 57/16, then n is equal to
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    Four dice are rolled. The number of possible outcomes in which atleast one dice shows 2 is
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  • Question 4
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    7 relatives of a man comprises 4 ladies and 3 gentlemen.His wife has also 7 relatives, 3 of them are ladies and 4 gentlemen. In how many ways, can they invite a dinner party of 3 ladies and 3 gentlemen so that there are 3 of man's relative and 3 of the wife's relative?
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  • Question 5
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    How many different words can be formed by jumbling the letters in the word 'MISSISSIPPI' in which no two S are adjacent?
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    All possible two factors products are formed from numbers 1, 2, 3, 4, ..., 200. The number of factors out of the total obtained which are multiples of 5, is
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  • Question 7
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    If 189C35 + 189Cχ = 190Cχ, then χ is equal to
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  • Question 8
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    The number of selecting atleast 4 candidates from 8 candidates is
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  • Question 9
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    There arc 5 letters and 5 different envelopes. The number of ways in which all the letters can be put in wrong envelope, is
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  • Question 10
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    There are 10 lamps in a hall. Each one of them can be switched on independently. The number of ways in which the hall can be illuminated, is
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