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The number of one-one and onto mapping f...

The number of one-one and onto mapping from A to B, where `n(A)=6andn(B)=7` is :

A

1000

B

12

C

13

D

0

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • the number of one - one and onto mapping from A to B where n (A) = 6 and n (B ) = 7 is :

    A
    1000
    B
    12
    C
    13
    D
    0

  • If a set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mapping from A to B is

    A
    720
    B
    120
    C
    0
    D
    none of these

  • If n(A)=15 and n(B)=10 , then number of injective (one-one) mapping from A into B is

    A
    `15C_{10}`
    B
    15!
    C
    0
    D
    10!

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