GMAT Question of the Day (Jan 5): Arithmetic and Sentence Correction

Math (DS)

1000 dollars were converted into pounds and then the pounds were converted back into dollars at the same exchange rate of $x$ pounds per dollar. If a commission of $y\%$ is levied on any exchange operation, what dollar amount was left after the exchanges?

1. $x = 0.6$
2. $y = 5$

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Verbal (SC)

Recent cosmological advances have made it possible to observe stellar objects that would only a decade ago have been unable to be viewed.

(A) it possible to observe stellar objects that would only a decade ago have been unable to be viewed
(B) it possible to observe stellar objects that would have been invisible only a decade ago
(C) possible that one can observe stellar objects invisible only a decade ago
(D) possible the observing of stellar objects that were not capable of being viewed only a decade ago
(E) possible the observing of stellar objects that only a decade ago would not have been able to be viewed

Answers to the questions: B, B
For explanations please see these threads: math and verbal

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GMAT Question of the Day (Jan 5): Arithmetic and Sentence Correction

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