If A and B are two sets having 10 and 15 elements respectively. 8 elements are common in A and B. Number of relations which can be defined from A to B is

If A and B are two sets having 10 and 15 elements respectively. 8 elements are common in A and B. Number of relations which can be defined from A to B is

  1. A

    217

  2. B

    225

  3. C

    2150

  4. D

    280

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    Solution:

    Number of elements in A x B is 150. 

    Number of relations from A to B = 2150

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