Question

If n(A x B) = 15 and B = {6, 4, 8, 9,0} then n(A)
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is.​

Answer 1

Answer:

n(A) = 3

Step-by-step explanation:

• n(A) ×n( B) = 15 and n(B) = 5
• so n(A) = 15/5 = 3