Question

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Answer 1

99x+101y=499........(1)
101x+99y=501........(2)
From eq. (1)
x=499-101y/99.......(3)
Putting value of x in eq. (2)
101(499-101y/99)+99y=501
50399-10201y/99+99y=501
-10201y+9801y/99=501-50399
20002y=-49898/99
y=504.02/20002
y=0.025

Answer 2

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