Verified answer

n(A) x n(B) = n(A x B)

since n(A) and n(B) both must be whole number,

and 1 < n(A) < 6,

we conclude that n(A) must be 3.

so, n(B) must be 9

n(A) = 3 and n(B) = 9

as n(A x B) =27 using n(A x B) = n(A) * n(B)