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If a set A has 5 elements , then the...

If a set A has 5 elements , then the number of ways of selecting two subsets P and Q from A such that P and Q are mutually disjoint is

A

64

B

128

C

243

D

729

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
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  2. The number of subsets of {1,2,3,. . . .9} conatining at least one ...

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  3. If a set A has 5 elements , then the number of ways of selectin...

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  4. Given 5 different green dyes 4 different blue dyes and 3 diffe...

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  5. The number of ways in which one or more balls can be selected...

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  6. A Fruits basket contains 4 organes , 5 apples and 6 mangoes ....

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  7. The number of ways in which 7 perncils , 6 books and 5 pens be...

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  8. The number of positive divisors of 2 ^5 , 3^6 ,7^3 is

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  9. The number of all positive divisors of 2 ^5 , 3^4 , 5^3 is

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  10. The number of positive divisors of 2520 is

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  11. The number of divisors of 7! is

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  12. The number of ways in which 1800 can be divided into two fact...

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  13. The number of ways in which 1440 can be divided into two fact...

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  14. The number of positive odd divisors of 216 is

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  15. The number of even divisors of 1600 is

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  16. The number of odd factors of 36000 is

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  17. The number of divisors of the form 4n + 2 ( nge 0) of 240 i...

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  18. The number of positive divisors of 2 ^6 3^5 7^4 is equal to

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  19. The sum of divisors of 2 ^5 3^4 5^3 is

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  20. The sum of the factors of 9 ! Which are odd and are of the fo...

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