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If (x+y):(x-y)=4:1,\ t h e n\ (x^2+y^2):...

If `(x+y):(x-y)=4:1,\ t h e n\ (x^2+y^2):(x^2-y^2)=?` `8: 17` b. `17 :8` c. `16 :1` d. `25 :9`

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RS AGGARWAL-RATIO AND PROPORTION-All Questions
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