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The number of ways in which one or ...

The number of ways in which one or more balls can be selected out of 10 white , 9 green and 7 blue balls is

A

892

B

881

C

891

D

879

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The correct Answer is:
D
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AAKASH SERIES-PERMUTATIONS & COMBINATIONS-PRACTICE EXERCISE
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  9. The number of divisors of 2^(6)3^(5)5^(3)7^(4)11 is

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  10. The sum of divisores of 2^(5).3^(4) is

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

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

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  13. Number of even proper divisors of 1008 is

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  14. The number of positive odd divisors of 216 is

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  15. The number of odd factors of 36000 is

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  16. The number of ways the numbers 10,800 can be resolved as a product of ...

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  17. The number of ways in which 1440 can be divided into two factors exclu...

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  18. The sum of odd divisors of 360 is

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  19. If one quarter of all three element subsets of the set A={a(1), a(2), ...

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