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Permutations and Combinations Test - 35

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Permutations and Combinations Test - 35
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  • Question 1
    4 / -1
    The total number of ways of selecting six coins out of 20 one rupee coins, 10 fifty paise coins and 7 twenty five paise coins is
  • Question 2
    4 / -1
    The number of ways in which thirty five apples can be distributed among 3 boys so that each have any number of apples, is
  • Question 3
    4 / -1
    In how many ways can 12 balls divided between 2 boys, one receiving 5 and other 7 balls
  • Question 4
    4 / -1
    The value of 8C3 is equal to
    Solution

  • Question 5
    4 / -1
    The number of positive integers which can be formed by using any number of digits from 0, 1, 2, 3, 4, 5 but using each digit not more than once in each number, is
    Solution

  • Question 6
    4 / -1
    The number of seven-digit integers, with sum of the digits equal to 10 and formed by using the digits 1, 2 and 3 only, is
    Solution

  • Question 7
    4 / -1
    9 balls are to be placed in 9 boxes and 5 of the balls cannot fit into 3 small boxes. The number of ways of arranging one ball in each of the boxes is
    Solution

  • Question 8
    4 / -1
    How many 10-digit numbers can be written by using digits 9 and 2?
  • Question 9
    4 / -1
    The letters of the word 'COCHIN' are permuted and all the permutations are arranged in an alphabetical order as in an English dictionary. The number of words that appear before the word 'COCHIN', is
    Solution

  • Question 10
    4 / -1
    Let A and B be two sets containing 2 elements and 4 elements, respectively. The number of subsets of A x B having 3 or more elements, is
    Solution

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