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Permutations an...

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  • Question 2
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  • Question 3
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    The least value of natural number n satisfying C (n,5) + C(n,6) > C(n + 1,5) is

  • Question 4
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    A person is permitted to select at least one and at most n coins from a collection of (2n + 1) distinct coins. If the total number of ways in which he can select coins is 255, then n equals

  • Question 5
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    How many numbers of 6 digits can be formed from the digits of the number 112233

  • Question 6
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    In how many ways can 5 red and 4 white balls be drawn from a bag containing 10 red and 8 white balls

  • Question 7
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    In an election the number of candidates is 1 greater than the persons to be elected. If a voter can vote in 254 ways, then the number of candidates is

  • Question 8
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    In how many ways can 21 English and 19 Hindi books be placed in a row so that no two Hindi books are together

  • Question 9
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  • Question 10
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    In how many ways a team of 11 players can be formed out of 25 players, If 6 out of them are always to be included and 5 are always to be excluded

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