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f:{1,2,3,4,5}→{1,2,3,4,5} that are onto ...

f:{1,2,3,4,5}→{1,2,3,4,5} that are onto and f(i)≠i, is equal to

A

A. 6

B

B. 88

C

C. 44

D

D. 50

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • Let f:{1,2,3,4,5} rarr {1,2,3,4,5} that are onto and f(x) ne i is equal to

    A
    9
    B
    44
    C
    16
    D
    None of these

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    A
    182
    B
    181
    C
    183
    D
    None of these

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    A
    number of onto functions, if n(f(A))=4 is 240
    B
    number of onto functions, if n(f(A))=3 is 600
    C
    number of onto functions, if n(f(A))=2 is 180
    D
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