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There are 3 copies each of 4 different b...

There are 3 copies each of 4 different books. The number of ways in which they can be arranged in a shelf is

A

`(12!)/((3!)^(4))`

B

`(12!)/((4!)^(3))`

C

`(12!)/((3!)^(4).4!)`

D

`(12!)/((4!)^(3).3!)`

Text Solution

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The correct Answer is:
A
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NEW JOYTHI PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXERCISE
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  10. There are 'n' different books and 'p' copies of each. The number of wa...

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  11. ""^(15)C(0)=

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  13. If m=""^(n)C(2),"then """^(m)C(2)=

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  15. The number of all possible squares in a chess board is

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  17. The number of ways in which 10 candidates A(1),A(2),A(3),.........,A(1...

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  19. The sides BC, CA, AB of a triangle ABC have 3, 4 and 5 interior points...

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