GMAT Question of the Day (Nov 26): Arithmetic and Sentence Correction

Math (DS)

If $x$ and $y$ are positive integers, is $x^{16} - y^8 + 345y^2$ divisible by 15?

1. $x$ is a multiple of 25, and $y$ is a multiple of 20
2. $y = x^2$

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

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Verbal (SC)

The supply of oil being finite has become an economical and political consideration of the first magnitude for all modern industrial nations.

(A) The supply of oil being finite has become an economical
(B) The finite supply of oil has become an economical
(C) That the supply of oil is finite has become an economical
(D) The supply of oil being finite has become an economic
(E) That the supply of oil is finite has become an economic

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

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GMAT Question of the Day (Nov 26): Arithmetic and Sentence Correction

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