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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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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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29 Dec 2012, 06:30

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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Updated on: 20 Aug 2014, 02:07

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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05 Mar 2016, 10:49

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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06 Mar 2016, 16:47

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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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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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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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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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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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."