Question
The sum of squares of two numbers is 80 and the square of their difference is 36. The product of the two numbers is:
Answer: Option A
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Numbers be a and b.
=> a2 + b2 = 80 and (a - b) 2 = 36
=> (a - b) 2 = 36
=> a2 + b2 “ 2ab = 36
=> 2ab = (a2 + b2) “ 36 = 80 “ 36 = 44
=> ab = 22.
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