Question

If set A={Factor of 30}. What is n(A)?
A.6.
B.7.
C.8.
D.10​

Answer 1

Step-by-step explanation:

(A) = (1,2,3,5,6,10,15,30)

n(A) = 8

n(A) is number of elements in this set.

and A is factor of 30

Answer 2

Answer:

c

Step-by-step explanation:

Given

A={factor of 30}. n(A)=?

"n(A) means number of factors of 30"

1×30=30 {1,30}

2×15=30 {2,15}

3×10=30 {3,10}

5×6 =30 {5,6}

Therefore factors of 30 are 1,2,3,5,6,10,15 and 30

i.e n(A)=8