Let f (x, y) = xn ym = P. If x is doubled and y is halved, the new value of f is

GATE · 2014 · EC · Set 4 · General Aptitude

1. A.

   2n−mP

2. B.

   2m−nP

3. C.

   2(n − m)P

4. D.

   2(m − n)P

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