Question

4. If n(A x B) = 20 and n(A) = 5 then n(B) is a) 4 b) 2 c) 8 d) 10​

Answer 1

Answer:

ans is (a) 4

Step-by-step explanation:

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Answer 2

Answer:

n(A)n(B) =20

(5) n(A) =20

n(B) = 20÷5

n(B) = 4

Option "A"