If the number of elements in the sets $G$ and $A$ are 3 and 4 respectively, then match the items of List I…
If the number of elements in the sets $G$ and $A$ are 3 and 4 respectively, then match the items of List I with those of List II
The correct match is
A B C D
V I III II
V III IV II
III IV V II
I II III IV
Solution
Given that, number of elements in the sets $G$ and $A$ are 3 and 4 respectively.
(A) The number of non bijective function from $G \times G$ to $G=3^9=19683$
(B) $A$ to $A$
Here, $a$ has 4 choice, $b$ has $3, c$ has 2 and $d$ has 1 choice.
So, number of bijective functions from $A$ to $A$ is
$
=4 \times 3 \times 2 \times 1=24
$
(C) $G$ to $G \times A$
So, number of function from $G$ to $G \times A$ is
$
=12^3=1728
$
(D) $A$ to $A \times A$
The number of surjective from $G$ to $G \times A$ i.e. 4 to 16 is 0
So, $\mathrm{A} \rightarrow \mathrm{V}, \mathrm{B} \rightarrow \mathrm{I}, \mathrm{C} \rightarrow \mathrm{III}, \mathrm{D} \rightarrow$ II