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Re: If s,u, and v are positive integers and 2s=2u+2v [#permalink]
19 Mar 2012, 23:23
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dzodzo85 wrote:
If s, u, and v are positive integers and 2s=2u+2v, which of the following must be true?
i. s=u ii. u is not equal to v iii. s > v
A. None B. I only C. II only D. III only E. II and III
Could someone explain this question a bit
Notice two things: 1. we are asked to find out which of the following MUST be true, not COULD be true and 2. s, u, and v are positive integers.
Given: 2s=2u+2v --> s=u+v. Now, since s, u, and v are positive integers then s is more than either u or v, so I is never true and III is always true. As for II: it's not necessarily true, for example 4=2+2. So, we have that only option III must be true.
Re: If s,u, and v are positive integers and 2s=2u+2v [#permalink]
15 Apr 2012, 23:53
ENAFEX wrote:
Bunuel,
Not sure what I am missing here!!
s=u+v, why is S>V is always true?
Can we not have 2=2+0? In that case S=V, Right?
ooppss!! Sorry guys just realised my mistake.
0 is neither positive nor negative. So for this question because it says s,u,v are positive integers, the above argument is not valid. _________________
Re: If s,u, and v are positive integers and 2s=2u+2v [#permalink]
10 Oct 2013, 09:30
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Re: If s,u, and v are positive integers and 2s=2u+2v [#permalink]
25 Nov 2014, 12:22
Hello from the GMAT Club BumpBot!
Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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Re: If s,u, and v are positive integers and 2s=2u+2v [#permalink]
09 Dec 2015, 06:16
I don't think this is an official question. There is a similar problem in OG 12, that says \(2^s = 2^u + 2^v\) Answer options are the same. _________________
Its not over..
gmatclubot
Re: If s,u, and v are positive integers and 2s=2u+2v
[#permalink]
09 Dec 2015, 06:16
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