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Question

If (x+y):(xy)=5:1, then the value of (x2y2):(x2+y2) will be

A
5:13
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B
2:3
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C
3:2
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D
13:5
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Solution

The correct option is A 5:13
x+yxy=51
5x5y=x+y
4x=6y
x=32y
x2y2x2+y2=(32y)2y2(32y)2+y2
=94y2y294y2+y2=54y2134y2
=513 i.e., 5:13

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