Question

If n (A x B) = 15 and n (A) =3 then n (B) is​

Answer 1

Answer:

Cartesian product of two sets is obtained by pairing each element of first set with each element of second set.

Given : n(A)=m and n(B)=n

Now, n(A×B)=n(A)×n(B)=m×n=mn.

Thus when m=8 and n=6, we have n(A×B)=48

verified_toppr

Answer 2

Answer:

B = 5 and A = 3.

huu of u transfer 3 from lhs to rhs it will divide 15 and answer u will get will be 5