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Find the value of 4C1 - 2C2...

Find the value of `4C_1 - 2C_2`

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CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
  1. If p,q,r are any real number, then

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  2. The number of ways of choosing triplet (x , y ,z) such that zgtmax{x,...

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  3. Find the value of 4C1 - 2C2

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  4. If a seven-digit number made up of all distinct digits 8, 7, 6, 4, ...

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  5. If n is number of necklaces which can be formed using 17 identical pea...

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  6. In how many ways can two distinct subsets of the set A of k(kgeq2) ...

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  7. There are 2n guests at a dinner party. Supposing that the master and m...

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  8. There are n is straight lines in a plane in which no two are parallel ...

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  9. A coin is tossed 2n times. The chance that the number of times one get...

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  10. An ordinary cubical dice having six faces marked with alphabets A, ...

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  11. How many five-digit numbers can be made having exactly two identica...

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  12. The members of a chess club took part in a round robin competition ...

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  13. Find the number of three-digit numbers from 100 to 999 including al...

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  14. Find the number of ways of disturbing n identicalobjects among n perso...

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  15. There are n points in a plane of which no three are in a straight line...

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  16. The number of arrangements two letters of the word BANANA in which two...

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  17. Seven relatives of a man comprises four ladies and three gentlemen:...

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  18. A three-digit number is to be formed using the digits 0, 1, 2, 3, 4, a...

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  19. If N is the number of ways in which 3 distinct numbers canbe select...

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  20. Find the total number of nine-digit numbers that can be formed using t...

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