Question

If n(A×B)=20 and n(A)=5 then n(B) is

5
3
4
2​

Answer 1

Answer:

4

Step-by-step explanation:

n(A)×n(B)=20

5×n(B)=20

n(B)=20/5

Answer 2

Answer:

4

Step-by-step explanation:

n(A×B) = n(A)×n(B)

5×n(B) = 20

n(B) = 20÷5

n(B) = 4