Quantitative Review 2nd Edition DS Question 57 -Pg157

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theachiever: Master | Next Rank: 500 Posts; Posts: 116; Joined: Wed Oct 03, 2012 10:44 pm; Thanked: 5 times; Followed by:1 members

Quantitative Review 2nd Edition DS Question 57 -Pg157

by theachiever » Tue Dec 04, 2012 10:59 pm

If m/n=5/3,what is the value of m+n?

1.m>0
2.2m+n=26

I feel the answer should be E but the given OA is B.

Experts or fellow members kindly provide inputs for the same.

Resilience is a trait that manifests in an individual when he/she faces consistent failures motivating them to succeed in the end.

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Anurag@Gurome: GMAT Instructor; Posts: 3835; Joined: Fri Apr 02, 2010 10:00 pm; Location: Milpitas, CA; Thanked: 1854 times; Followed by:523 members; GMAT Score:770

by Anurag@Gurome » Wed Dec 05, 2012 4:35 am

theachiever wrote:If m/n=5/3,what is the value of m+n?

1.m>0
2.2m+n=26

I feel the answer should be E but the given OA is B.

Experts or fellow members kindly provide inputs for the same.

(1) m > 0
m/n = 5/3
If m = 5, n = 3, then m + n = 8
If m = 15, n = 9, then m + n = 24
No definite answer; NOT sufficient.

(2) 2m + n = 26
m/n = 5/3
m = 5n/3
So, 2(5n/3) + n = 26
10n + 3n = 78
13n = 78
n = 6 implies m = (5 * 6)/3 = 10; SUFFICIENT.

The correct answer is B.

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Gurome, Inc.
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