If for all numbers \(P,\) where \(P\ne 1,\) the function \(@\) is defined by \(P@=\dfrac{P}{P-1},\) what is the value of

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If for all numbers \(P,\) where \(P\ne 1,\) the function \(@\) is defined by \(P@=\dfrac{P}{P-1},\) what is the value of \((P@)@?\)

A. \(\dfrac{P}{P-1}\)

B. \(\dfrac{1}{P}\)

C. \(P\)

D. \(2-P\)

E. \(P-1\)

Answer: C

Source: GMAT Club Tests
Source: — Problem Solving |