Question

If A={8, 10, 12, 14, 16, 18, 20} find n(A)

Answer 1

n(A) stands for cardinal number meaning the total number of elements present in the set.

Here,

n(A) = 7

Hope this Helps!

Answer 2

Given :-

• A = {8, 10, 12, 14, 16, 18, 20}

To Find :-

• n (A) = ?

Solution :-

we know that,

• n(A) = n of A = Total number of elements in set A .

so,

→ A = {8, 10, 12, 14, 16, 18, 20}

as we can see that, total elements in set A are 7 . { All are even numbers . }

then,

→ n(A) = 7 (Ans.)

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