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A library has a copies of one Book, b co...

A library has a copies of one Book, b copies of each of two books, c copies of each of three books, and single copies of d books. The total number of ways in which these books can be distributed is

A

`((a+b+c+d))/(a,b,c,)`

B

`((a+2b+3c+d))/(a,(b,)^(2)(c,)^(5))`

C

`((a+2b+3c+d),)/(a,b,c,)`

D

none of these

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • There are n books having p copies of each . The number of ways in which a selection can be made from them is :

    A
    `n^p`
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  • A student is allowed to select at most n books from a collection of (2n+1) books. If the total number of ways in which he can select the books is 63, then n is :

    A
    6
    B
    3
    C
    4
    D
    None of these
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