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Question

How many onto functions can be defined from the set A = {1, 2, 3, 4} to {a, b, c}

A
81
CORRECT ANSWER WRONG ANSWER
B
79
CORRECT ANSWER WRONG ANSWER
C
36
CORRECT ANSWER WRONG ANSWER
D
45
CORRECT ANSWER WRONG ANSWER
Solution

Correct option is

(C)

Explanatory Answer :

If a set A has m elements and set B has n elements, then the number of onto functions from A to B =

so,

after solving this , we get 36

hence , C is the correct option