if X + y is equal to 20 then xy is maximum when
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If X+y is equals to 20 then the maximum value of xy will be 100 taking both the value as 10 .
I am not sure about this answer so I will advice you to recheck it !!!
if you think then X and y value can't be same...
Therefore I am thinking that the value of X and y can't be same so we can take the value of x as 11 and y as 9 so we will get the product 99 ...
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