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# in some months last year, natalie, a sales representative at

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in some months last year, natalie, a sales representative at [#permalink]

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01 Dec 2008, 15:27
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in some months last year, natalie, a sales representative at
SmithKline & Beecham, went over $60000 in sales. in how many months last year did she do so? 1. last year, the number of months in which natalie went over$60000 was 8 months more than the number of
months in which she did not.

2. last year, the number of months in which natalie went
below $60000 was 1/5 the number of months in which she did not. Manager Joined: 27 May 2008 Posts: 203 Followers: 1 Kudos [?]: 35 [0], given: 0 Re: DS: tough one [#permalink] ### Show Tags 01 Dec 2008, 19:49 IMO D 1)o = 8+u also o+u = 12 so o=10;u=2 2) u = 1/5(O) ; so o=10;u=2 D Current Student Joined: 28 Dec 2004 Posts: 3385 Location: New York City Schools: Wharton'11 HBS'12 Followers: 14 Kudos [?]: 236 [0], given: 2 Re: DS: tough one [#permalink] ### Show Tags 01 Dec 2008, 22:04 try again... usually if I say its tough..there is a trap somewhere.. SVP Joined: 29 Aug 2007 Posts: 2492 Followers: 65 Kudos [?]: 668 [0], given: 19 Re: DS: tough one [#permalink] ### Show Tags 01 Dec 2008, 22:26 fresinha12 wrote: in some months last year, natalie, a sales representative at SmithKline & Beecham, went over$60000 in sales. in how many months last year did she do so?

1. last year, the number of months in which natalie went over $60000 was 8 months more than the number of months in which she did not. 2. last year, the number of months in which natalie went below$60000 was 1/5 the number of months in which she did not.

The possibilities are:

Sales above (over) $60000 = a Sales equal to$60000 = e
Sales below to $60000 = b 1: a - b -e = 8 if a = 9, b = 1 and e = 2 if a = 10, b = 2 and e = 0 so nsf.. 2: b = 1/5 (a+e) 5b = (a+e) so "b" has to be 2 and (a+e) = 10 but do not know what "a" and "e" are. nsf. 1&2: since "a" cannot be 9 cuz if so "e" has to be 2 and (a+e) becomes 11 which is wrong (from st... 2). so a has to be 10 and e equal to 0 to have a+e = 10. C: Really tricky. _________________ CEO Joined: 17 Nov 2007 Posts: 3580 Concentration: Entrepreneurship, Other Schools: Chicago (Booth) - Class of 2011 GMAT 1: 750 Q50 V40 Followers: 484 Kudos [?]: 2794 [0], given: 359 Re: DS: tough one [#permalink] ### Show Tags 02 Dec 2008, 00:52 Expert's post Hi, Tiger! fresinha12 wrote: 1. last year, the number of months in which natalie went over$60000 was 8 months more than the number of
months in which she did not
.

the bold part means <=$60000 (not <$60000). So, first statement is sufficient.
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Manager
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Re: DS: tough one [#permalink]

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02 Dec 2008, 03:30
A.

(1) is suff since (>60) -8 = (<=60)
>60 + <=60 =12

(2) insuff <60 = 1/5 (>=60) but we need >60.

sorry for the messy symbols...
SVP
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Re: DS: tough one [#permalink]

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02 Dec 2008, 07:56
Agree walker. I also meant to say the same as you said but forgot to put -e, which I added.

But still I did not get "how A is suff"?

walker wrote:
Hi, Tiger!

fresinha12 wrote:
1. last year, the number of months in which natalie went
over $60000 was 8 months more than the number of months in which she did not . the bold part means <=$60000 (not <$60000). So, first statement is sufficient. _________________ CEO Joined: 17 Nov 2007 Posts: 3580 Concentration: Entrepreneurship, Other Schools: Chicago (Booth) - Class of 2011 GMAT 1: 750 Q50 V40 Followers: 484 Kudos [?]: 2794 [0], given: 359 Re: DS: tough one [#permalink] ### Show Tags 02 Dec 2008, 12:29 Expert's post The equation for statement 1 is following: x + (x-8)=12 ---> x=10 (10 and 2 months respectively) _________________ HOT! GMAT TOOLKIT 2 (iOS) / GMAT TOOLKIT (Android) - The OFFICIAL GMAT CLUB PREP APP, a must-have app especially if you aim at 700+ | PrepGame SVP Joined: 29 Aug 2007 Posts: 2492 Followers: 65 Kudos [?]: 668 [0], given: 19 Re: DS: tough one [#permalink] ### Show Tags 02 Dec 2008, 23:23 Thanks walker. Though the question was not very difficult, statement 1 skipped off from my head. _________________ Current Student Joined: 28 Dec 2004 Posts: 3385 Location: New York City Schools: Wharton'11 HBS'12 Followers: 14 Kudos [?]: 236 [0], given: 2 Re: DS: tough one [#permalink] ### Show Tags 03 Dec 2008, 08:13 OA is A.. its not tough, yet so many of you got it wrong... Manager Joined: 09 Nov 2008 Posts: 148 Followers: 1 Kudos [?]: 11 [0], given: 3 Re: DS: tough one [#permalink] ### Show Tags 05 Dec 2008, 00:30 no wonder I didn't do well on the GMAT Quant. I didn't know GMAT was this tricky. I didn't consider the equal to$60,000 part. A makes sense in that regards.
Re: DS: tough one   [#permalink] 05 Dec 2008, 00:30
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# in some months last year, natalie, a sales representative at

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