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TAGS: GRE Instructor Joined: 10 Apr 2015
Posts: 2027
Followers: 62

Kudos [?]: 1841  , given: 9

If x and y are distinct prime numbers, which of the followin [#permalink]
1
KUDOS
Expert's post 00:00

Question Stats: 100% (00:56) correct 0% (00:00) wrong based on 1 sessions
If x and y are distinct prime numbers, which of the following could be true?

A. $$\frac{x^y}{y}$$ is an odd integer

B. $$x^2y^3=x^2$$

C. $$\frac{y^x}{4}$$ is an even integer

D. $$\frac{xy}{2}$$ is an even integer

E. $$x^y=y^x$$
[Reveal] Spoiler: OA

_________________

Brent Hanneson – Creator of greenlighttestprep.com  GRE Instructor Joined: 10 Apr 2015
Posts: 2027
Followers: 62

Kudos [?]: 1841  , given: 9

Re: If x and y are distinct prime numbers, which of the followin [#permalink]
1
KUDOS
Expert's post
GreenlightTestPrep wrote:
If x and y are distinct prime numbers, which of the following could be true?

A. $$\frac{x^y}{y}$$ is an odd integer

B. $$x^2y^3=x^2$$

C. $$\frac{y^x}{4}$$ is an even integer

D. $$\frac{xy}{2}$$ is an even integer

E. $$x^y=y^x$$

The keyword here is COULD.

Scanning the answer choices, I see that C could be true.
If x = 2 and y = 3, then (x^y)/4 = (2³)/4 = 2, and 2 IS an even integer.

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com  Re: If x and y are distinct prime numbers, which of the followin   [#permalink] 09 Apr 2019, 17:31
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