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If 2/(1+2/y)=1, then y =

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If 2/(1+2/y)=1, then y = [#permalink]

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New post 29 Dec 2012, 06:27
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If \(\frac{2}{1+\frac{2}{y}}=1\), then y =

(A) -2
(B) -1/2
(C) 1/2
(D) 2
(E) 3
Spoiler: OA
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 29 Dec 2012, 06:30
1
Walkabout wrote:
If \(\frac{2}{1+\frac{2}{y}}=1\), then y =

(A) -2
(B) -1/2
(C) 1/2
(D) 2
(E) 3


\(\frac{2}{1+\frac{2}{y}}=1\) --> \(\frac{2}{\frac{y+2}{y}}=1\) --> \(\frac{2y}{y+2}=1\) --> \(2y=y+2\) --> \(y=2\).

Answer: D.
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If 2/(1+2/y)=1, then y = [#permalink]

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New post Updated on: 20 Aug 2014, 02:07
1
Simplified in this way:

\(2 = 1 + \frac{2}{y}\)

\(\frac{2}{y} = 1\);

So y = 2

Answer = D
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Originally posted by PareshGmat on 01 Jul 2013, 22:41.
Last edited by PareshGmat on 20 Aug 2014, 02:07, edited 1 time in total.
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 05 Mar 2016, 10:49
1
Walkabout wrote:
If \(\frac{2}{1+\frac{2}{y}}=1\), then y =
(A) -2
(B) -1/2
(C) 1/2
(D) 2
(E) 3


For \(\frac{2}{1+\frac{2}{y}}\) to equal 1, \(1+\frac{2}{y}\) should equal 2.
Therefore, \(1+\frac{2}{y} = 2\) --> \(\frac{2}{y} = 1\) --> \(y = 2\) ---> \(\frac{2}{1+\frac{2}{2}}=1\)

Answer choice D
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 06 Mar 2016, 16:47
1
can someone tell me what level question was that?
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 07 Mar 2016, 04:59
SQUINGEL wrote:
can someone tell me what level question was that?


The difficulty level of the question is sub-600 as shown by the tag right above the question timer.

FYI, asking for a question level is not going to help you. Try to understand what is required to be done in a particular question.
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 07 Mar 2016, 07:19
Walkabout wrote:
If \(\frac{2}{1+\frac{2}{y}}=1\), then y =

(A) -2
(B) -1/2
(C) 1/2
(D) 2
(E) 3



\(\frac{2}{1+\frac{2}{y}}=1\)
2 = 1 + 2/y
1 = 2/y
y = 2

Answer - D
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 15 Jul 2016, 04:47
Walkabout wrote:
If \(\frac{2}{1+\frac{2}{y}}=1\), then y =

(A) -2
(B) -1/2
(C) 1/2
(D) 2
(E) 3


We need to simplify the equation 2/(1 + 2/y) = 1. We can start by multiplying both sides of the equation by 1 + 2/y and we have:

2 = 1 + 2/y

1 = 2/y

y = 2

The answer is D.
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If 2/(1+2/y)=1, then y = [#permalink]

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New post 15 Jul 2016, 16:09
\(\begin{align}
&\frac{2}{1+\frac{2}{y}} = 1 \\
&2 = 1+\frac{2}{y} & {\text{multiplied both sides by } 1+\frac{2}{y}}\\
&1 = \frac{2}{y} & \text{subtracted 1}\\
&y = 2 & \text{multiplied by } y\\
&\text{Answer: (D) 2}
\end{align}\)
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Re: If 2/(1+2/y)=1, then y = [#permalink]

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New post 15 Nov 2017, 16:37
2 divided by "something" equals "1". The only value in which 2 is divided by some value and is equal to "1" is when 2 is divided by itself. I wish I had this question on the exam! I think GMAT is also testing the prime number rules...."A Prime Number can be divided evenly only by 1, or itself."
Re: If 2/(1+2/y)=1, then y =   [#permalink] 15 Nov 2017, 16:37
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