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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
2
7
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

91% (00:22) correct 9% (00:28) wrong based on 1723 sessions

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Re: 1/(0.75-1)=  [#permalink]

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New post 18 Sep 2012, 06:15
4
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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, 02:44
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New post 18 Sep 2012, 04:57
2
1/-.25 = -4

Answer 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 21 Sep 2012, 03:02
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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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New post 10 May 2016, 17:59
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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 22723 times ]


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New post 11 May 2016, 07:49
1
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:

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

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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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New post 10 Jan 2018, 12:53
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Bunuel wrote:
\(\frac{1}{0.75-1}=\)

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


Useful fraction property: 1/(a/b) = b/a
For example: 1/(2/3) = 3/2
And 1/(19/7) = 7/19

So, 1/(0.75 - 1) = 1/(-0.25) = 1/(-1/4) = -4/1 = -4


Alternatively, 1/(0.75 - 1) = 1/(3/4 - 4/4) = 1/(-1/4) = -4

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New post 27 Jan 2018, 06:52
1/0.75-1 => 1/-0.25 => -4
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New post 19 Aug 2018, 05:49
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


tHIS IS HOW I SOLVED

1/ ( 0.75 - 1) = 1 / ( -0.25 ) = 1*100/-25 = 100/-25 = 4/-1 = -4 = ANSWER a
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New post 10 Oct 2018, 08:37
Do questions this easy still appear in the GMAT?
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Re: 1/(0.75-1)=   [#permalink] 10 Oct 2018, 08:37

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