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  • Question 1
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    The number of words which can be made out of the letters of the word ‘MOBILE’ when consonants always occupy odd places is

  • Question 2
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    The number of 4 digit number that can be formed from the digits 0, 1, 2, 3, 4, 5, 6, 7 so that each number contain digit 1 is

  • Question 3
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    If the letters of the word ‘KRISNA’ are arranged in all possible ways and these words are written out as in a dictionary, then the rank of the word ‘KRISNA’ is

  • Question 4
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    An n digit number is a positive number with exactly n digits. Nine hundred distinct n-digit numbers are to be formed using only the three digits 2, 5 and 7. The smallest value of n for which this is possible is

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