Answers

2014-01-24T20:18:52+05:30
2014-01-25T12:26:15+05:30
Let the numbers be x and y and x>y. hence x*y=91 and (x+y)/2=10.
by the formula (x+y)^2 - 4xy = (x-y)^2,
we get that (x-y)^2 = 20*20 - 4*91 = 36.
therefore (x - y) = 6 and (x + y) = 20.
solving the simultaneous equation we get x=13 , y=7.
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