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GMAT Club

GMAT Question of the Day (October 18)

Jeff 0

Math

If f(x) = \frac{x^4 - 1}{x^2}, what is f(\frac{1}{x}) in terms of f(x)?

A. f(x)
B. -f(x)
C. \frac{1}{f(x)}
D. -\frac{1}{f(x)}
E. 2f(x)

Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)

Math Revolution

Verbal

One way to judge the performance of a company is to compare it with other companies. This technique, commonly called "benchmarking", permits the manager of a company to discover better industrial practices and can provide a justification for the adoption of good practices.

Any of the following, if true, is a valid reason for benchmarking the performance of a company against companies with which it is not in competition rather that against competitors EXCEPT:

(A) Comparisons with competitors are most likely to fous on practices that the manager making the comparisions already employs
(B) Getting "inside" information about the unique practices of competitors is particularly difficult
(C) Since companies that compete with each other are likely to have comparable levels of efficiency, only benchmarking against non-competitors is likely to reveal practices that would aid in beating competitors
(D) Managers are generally more receptive to new ideas that they find outside their own industry
(E) Much of the success of good companies is due to their adoption of practices that take advantage of the special circumstances of their products of markets

Question Discussion & Explanation

Correct Answer - - (click and drag your mouse to see the answer)

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