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All possible numbers are formed using the digits 1, 1, 2, 2, 2, 2, 3, 4, 4 taken all at a time. The number of such numbers such that odd numbers occupy even places is ___________.

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MCGROW HILL PUBLICATION-PERMUTATIONS AND COMBINATIONS -SOLVED EXAMPLES (LEVEL 2) Numerical Answer Type Questions
  1. All possible numbers are formed using the digits 1, 1, 2, 2, 2, 2, 3, ...

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  2. The number of numbers divisible by 3 that can be formed by four non-ze...

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  3. Let N be the number of four digit numbers that can be with the digits ...

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  4. If ""^(52)C(4)+sum(j-1)^(5)(""^(51+j)C(3))=""^(n)C(53), then n = .

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  5. The number of values of n in N for which ""^(10)C(n-1)gt 2(""^(10)C(n)...

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  6. The number of ways in which four A's and five B's can be arranged alon...

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  7. Let N = the number of four letter words that can be formed from the En...

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  8. Let N = The number of four-digit numbers strictly greater than 4321 th...

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  9. A committee of 11 members is to be formed from 8 men and 5 women. If ...

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  10. Let N = the number of 6 digit numbers that can be formed from the digi...

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  11. Let N = the number of four digit numbers of the form a(1)a(2)a(3)a(4) ...

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  12. Let N = the number of ways to fill each of the four cells of the table...

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  13. If letters of the word NIGHT are arranged in all possible manner and w...

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  14. Let N = the number of ways of choosing 10 objects out of 31 objects of...

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  15. A group of students consists of 5 boys and n girls. If the number of w...

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  16. Let N = the number of ways of forming a committee of 6 members out of ...

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  17. Let N = the number of 10 digit numbers that can be formed with all the...

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  18. There are 20 straight lines in a plane such that no two of them are pa...

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  19. If 15^(k) divides 50! but 15^(k+1) doesn’t divide 50!, then k = .

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