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2008 AMC12 A #5 본문

AMC12/2008

2008 AMC12 A #5

수악중독 2014. 12. 19. 17:13

Suppose that $\dfrac{2x}{3}-\dfrac{x}{6}$ is an integer. Which of the following statements must be true about $$x$$?

(A) It is negative.

(B) It is even, but not necessarily a multiple of $$3$$.

(C) It is a multiple of $$3$$, but not necessarily even.

(D) It is a multiple of $$6$$, but not necessarily a multiple of $$12$$.

(E) It is a multiple of $$12$$.

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