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Permutations an...

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  • Question 1
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    The product of first n odd natural numbers equal.

  • Question 2
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    The number of ways in which a committee of 3 women and 4 men be chosen from 8 women and 7 men is formed if mr.A refuses to serve on the commitee if mr. B is a member of the committee is _______

  • Question 3
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  • Question 4
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    The reminder when no.1!+2!+3!+4!+......+100! is divided by 240 is _______

  • Question 5
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    There are three piles of identical yellow, black,and green balls and each pile contains at least 20 balls. The number of ways of selcting 20 balls if the number of black balls to be selected is thrice the number of yellow balls is _______

  • Question 6
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  • Question 7
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  • Question 8
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    The number of ways that 8 beads of different colours be string as a necklace is

  • Question 9
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    In how many ways 7 men and 7 women can be seated around a round table such that no two women can sit together

  • Question 10
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    20 persons are invited for a party. In how many different ways can they and the host be seated at a circular table, if the two particular persons are to be seated on either side of the host

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