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1/(0.75-1)=

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1/(0.75-1)= [#permalink]

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New post 18 Sep 2012, 02:43
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A
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E

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New post 18 Sep 2012, 04:57
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1/-.25 = -4

Answer A
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New post 18 Sep 2012, 06:15
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Bunuel wrote:
\(\frac{1}{0.75-1}=\)

(A) -4
(B) -0.25
(C) 0.25
(D) 0.75
(E) 4




.75 - 1 = -0.25

So the expression becomes 1/(-0.25) = -100/25 = -4

Hence A
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New post 18 Sep 2012, 10:30
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Bunuel wrote:
The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Project

\(\frac{1}{0.75-1}=\)

(A) -4
(B) -0.25
(C) 0.25
(D) 0.75
(E) 4

Practice Questions
Question: 41
Page: 157
Difficulty: 550


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1/(0.75-1) = 1/0.25 = 4 (Option "E")

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New post 18 Sep 2012, 10:56
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jitgoel wrote:

1/(0.75-1) = 1/0.25 = 4 (Option "E")


\(1/ (0.75-1) = 1/ (-0.25) = -4\)
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New post 10 Sep 2014, 04:01
Bunuel wrote:
\(\frac{1}{0.75-1}=\)

(A) -4
(B) -0.25
(C) 0.25
(D) 0.75
(E) 4

Practice Questions
Question: 41
Page: 157
Difficulty: 550



\(\frac{1}{0.75-1}=\)

1/(-0.25)

100/(-25)

-4

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New post 10 Sep 2014, 04:37
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The answer would be negative & an integer

Only 4 fits in

Answer = A
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New post 10 Sep 2014, 06:18
1/0.75 - 1 = -(1/0.25) = -4

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Re: 1/(0.75-1)= [#permalink]

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New post 10 May 2016, 17:59
Attached is a visual that should help.
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Screen Shot 2016-05-10 at 5.49.29 PM.png
Screen Shot 2016-05-10 at 5.49.29 PM.png [ 24.94 KiB | Viewed 6487 times ]


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New post 11 May 2016, 07:49
Bunuel wrote:
\(\frac{1}{0.75-1}=\)

(A) -4
(B) -0.25
(C) 0.25
(D) 0.75
(E) 4



Solution:

We start by subtracting 1 from 0.75 in the denominator of 1/(0.75 – 1). This yields:

1/-0.25

Next we convert 0.25 to a fraction, so 0.25 = 1/4. This now gives us:

1/(-1/4) = 1 x -4 = -4

The answer is A.
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New post 08 Jun 2016, 02:28
0.75 -1 = -0.25
\(\frac{1}{-0.25}\) = -4

Correct Answer - A

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New post 22 Mar 2017, 22:37
I hope this can help everyone see all the different ways they can solve this problem:

\(\frac { 1 }{ 0.75-1 } =\frac { 1 }{ -0.25 } =\frac { 100 }{ -25 } =-4\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad or\\ \frac { 1 }{ 0.75-1 } =\frac { 1 }{ \frac { 3 }{ 4 } -1 } =\frac { 1 }{ \cfrac { 3 }{ 4 } -\cfrac { 4 }{ 4 } } =\frac { 1 }{ -\frac { 1 }{ 4 } } =-\frac { 4 }{ 1 } =-4\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad or\\ \frac { 1 }{ 0.75-1 } =\frac { 1 }{ -0.25 } =\frac { 1 }{ -\frac { 1 }{ 4 } } =-\frac { 4 }{ 1 } =-4\)

OA
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A

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Re: 1/(0.75-1)= [#permalink]

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New post 14 Sep 2017, 22:24
0.75-1 = -0.25
1/0.25 = 1*100/-0.25*100
100/ - 25 = -4
Answer A
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Re: 1/(0.75-1)=   [#permalink] 14 Sep 2017, 22:24
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