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
U ? A = {a, b, c, d, e, f} ? {a, b, c} = {a, b, c, d, e, f} = U
(U ? A)? = ?.
Sunil's income is less than Mukul's = [(10 / (100 + 10)] × 100 %
= ( 1000 / 110 )%
= 9.09 %
So, 39 is wrong.
So, 33 is wrong. It must be 35
∴ x = 7.
So, 40 is wrong.
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