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# M23-36

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Math Expert
Joined: 02 Sep 2009
Posts: 58452

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16 Sep 2014, 01:20
00:00

Difficulty:

5% (low)

Question Stats:

83% (00:35) correct 17% (00:26) wrong based on 133 sessions

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The sum $$1.4 + \frac{1}{7}$$ is between

A. 1.40 and 1.45
B. 1.45 and 1.50
C. 1.50 and 1.55
D. 1.55 and 1.60
E. 1.60 and 1.65

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Math Expert
Joined: 02 Sep 2009
Posts: 58452

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16 Sep 2014, 01:20
Official Solution:

The sum $$1.4 + \frac{1}{7}$$ is between

A. 1.40 and 1.45
B. 1.45 and 1.50
C. 1.50 and 1.55
D. 1.55 and 1.60
E. 1.60 and 1.65

$$1.4 + \frac{1}{7} \gt 1.4 + \frac{1}{10} = 1.5$$; $$1.4 + \frac{1}{7} \lt 1.4 + \frac{3}{20} = 1.4 + 0.15 = 1.55$$.

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Joined: 20 Jan 2013
Posts: 9
GMAT 1: 660 Q49 V30
GMAT 2: 690 Q49 V34

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06 Sep 2016, 05:13
1

1/7= 0.1428. Therefore, 1.4+0.1428=1.5428

There can be some number between 1.5428 and 1.55. Correct answer should be B.
Math Expert
Joined: 02 Sep 2009
Posts: 58452

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06 Sep 2016, 05:16
am265531 wrote:

1/7= 0.1428. Therefore, 1.4+0.1428=1.5428

There can be some number between 1.5428 and 1.55. Correct answer should be B.

1.54 IS between 1.50 and 1.55. The answer is correct.

P.S. ALL answers on the tests are correct.
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Joined: 08 Jun 2015
Posts: 420
Location: India
GMAT 1: 640 Q48 V29
GMAT 2: 700 Q48 V38
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04 Apr 2018, 07:17
+1 for C
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Re: M23-36   [#permalink] 04 Apr 2018, 07:17
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# M23-36

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