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Compare the fractions

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GMAT Club Legend
GMAT Club Legend
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Joined: 07 Jun 2014
Posts: 4710
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1612 [0], given: 375

CAT Tests
Compare the fractions [#permalink] New post 26 Dec 2016, 16:39
Expert's post
00:00

Question Stats:

74% (00:40) correct 25% (00:45) wrong based on 27 sessions
Quantity A
Quantity B
7/8 - 0.25
0.325 + 1/3


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.


Drill 1
Question: 11
Page: 312
[Reveal] Spoiler: OA

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Sandy
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GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4710
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1612 [0], given: 375

CAT Tests
Re: Compare the fractions [#permalink] New post 26 Dec 2016, 16:58
Expert's post
Explanation

Quantity A: Convert the fractions to decimals. So \(\frac{7}{8}=0.875\), making Quantity A 0.625.

Quantity B: In Quantity B, \(\frac{1}{3}\) is about 0.333, making Quantity B about 0.658.

Quantity B is greater.
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Sandy
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1 KUDOS received
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Kudos [?]: 1053 [1] , given: 6

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Re: Compare the fractions [#permalink] New post 27 Dec 2016, 09:59
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Expert's post
sandy wrote:
Quantity A
Quantity B
7/8 - 0.25
0.325 + 1/3



I would likely convert everything to decimals (as Sandy has done), but we can also convert everything to fractions.

Given:
Quantity A: 7/8 - 0.25
Quantity B: 0.325 + 1/3

For sake of convenience, let's rewrite every fraction with a denominator of 1000
Aside: 1/3 ≈ 0.333 ≈ 333/1000

So, we get:
Quantity A: 875/1000 - 250/1000
Quantity B: 325/1000 + 333/1000

Simplify:
Quantity A: 625/1000
Quantity B: 658/1000

Answer: B
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Brent Hanneson – Creator of greenlighttestprep.com
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Re: Compare the fractions   [#permalink] 27 Dec 2016, 09:59
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