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# The number 2 - 0.5 is how many times the number 1 - 0.5?

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Math Expert
Joined: 02 Sep 2009
Posts: 51229
The number 2 - 0.5 is how many times the number 1 - 0.5?  [#permalink]

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26 Dec 2013, 07:47
00:00

Difficulty:

5% (low)

Question Stats:

95% (00:23) correct 5% (00:48) wrong based on 980 sessions

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The Official Guide For GMAT® Quantitative Review, 2ND Edition

The number 2 - 0.5 is how many times the number 1 - 0.5?

(A) 2
(B) 2.5
(C) 3
(D) 3.5
(E) 4

Problem Solving
Question: 6
Category: Arithmetic Operations on rational numbers
Page: 62
Difficulty: 500

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Math Expert
Joined: 02 Sep 2009
Posts: 51229
Re: The number 2 - 0.5 is how many times the number 1 - 0.5?  [#permalink]

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26 Dec 2013, 07:52
SOLUTION

The number 2 - 0.5 is how many times the number 1 - 0.5?

(A) 2
(B) 2.5
(C) 3
(D) 3.5
(E) 4

From the stem we can set up the following equation:

$$(2-0.5)=x*(1-0.5)$$;

$$1.5=x*0.5$$;

$$x=3$$.

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Status: GMATting
Joined: 21 Mar 2011
Posts: 105
Concentration: Strategy, Technology
GMAT 1: 590 Q45 V27
Re: The number 2 - 0.5 is how many times the number 1 - 0.5?  [#permalink]

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26 Dec 2013, 20:26
1
Solution:

Let the multiplier be x.
2-0.5 = x(1-0.5)
1.5 = 0.5x
=> x = 3

Ans is (C)

This seems like a sub-500 question.
Manager
Joined: 12 Jan 2013
Posts: 153
Re: The number 2 - 0.5 is how many times the number 1 - 0.5?  [#permalink]

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27 Dec 2013, 07:01
1
2 - 0.5 = 1.5 and 1-0.5 = 0.5 which is 1/3 of 1.5 so answer C.

Why does it seem like very few actually respond to the OG Quant review questions, in relation to the usual OG's?
Manager
Joined: 06 Sep 2018
Posts: 171
Location: Pakistan
Concentration: Finance, Operations
GPA: 2.87
WE: Engineering (Other)
Re: The number 2 - 0.5 is how many times the number 1 - 0.5?  [#permalink]

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06 Sep 2018, 08:28
$$1.5=x0.5$$
we have to find x
$$x=\frac{1.5}{0.5}$$
$$x=\frac{15}{5}$$
$$x=3$$

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Re: The number 2 - 0.5 is how many times the number 1 - 0.5? &nbs [#permalink] 06 Sep 2018, 08:28
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# The number 2 - 0.5 is how many times the number 1 - 0.5?

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