Correct Answer: 22
Explanation:
Let the number be a and b. Then, a2 + b2 = 80 and (a - b)2= 36 ⇒ a2 + b2 - 2ab = 36 ⇒ 2ab = (a2 + b2)-36 = 80 - 36= 44 ∴ Product = ab = 22