5 years ago in Quantitative Aptitude

The mean of x and 1/x is n, then the mean of x2 and 1/x2 is ?

[A] N<sup>2</sup>
[B] 2N<sup>2</sup>-1
[C] N<sup>2</sup>-2
[D] 4N<sup>2</sup>-2
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Nazia Sayed
Nazia Sayed - 2 years ago

Nazia Sayed from Mumbai, India is saying N2-2 is correct answer

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