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+1 vote
613 views
in Mathematics by (165 points)
If the set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is

(a)720      (b)120       (c)0    (d)NOT

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1 Answer

+1 vote
by (63.2k points)

Answer:

A contains 5 elements

B contains 6 elements

Since number of elements in B is more than A there cannot be any one-one and onto mapping from A to B

So, the correct answer is (c) i.e 0

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