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# At a souvenir shop, all posters are priced equally and all

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Intern
Joined: 02 Jul 2013
Posts: 19

Kudos [?]: 196 [0], given: 16

Schools: LBS MIF '15
At a souvenir shop, all posters are priced equally and all [#permalink]

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15 Oct 2013, 08:04
12
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Difficulty:

15% (low)

Question Stats:

68% (00:27) correct 32% (00:27) wrong based on 473 sessions

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At a souvenir shop, all posters are priced equally and all maps are priced equally. What is the total price of 8 posters and 6 maps at the souvenir shop?

1) At the souvenir shop, the total price of 4 posters and 3 maps is $39.70 2) At the souvenir shop, the total price of 12 posters and 9 maps is$119.10
[Reveal] Spoiler: OA

Kudos [?]: 196 [0], given: 16

Math Expert
Joined: 02 Sep 2009
Posts: 41699

Kudos [?]: 124811 [3], given: 12079

Re: At a souvenir shop, all posters are priced equally and all [#permalink]

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15 Oct 2013, 08:08
3
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Expert's post
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At a souvenir shop, all posters are priced equally and all maps are priced equally. What is the total price of 8 posters and 6 maps at the souvenir shop?

Questions: 8p + 6m = ?

(1) At the souvenir shop, the total price of 4 posters and 3 maps is $39.70 --> 4p + 3m = 39.70 --> multiply by 2: 8p + 6m = 2*39.70. Sufficient. (2) At the souvenir shop, the total price of 12 posters and 9 maps is$119.10 --> 12p + 9m = 119.10 --> multiply by 2/3: 8p + 6m = 2/3*39.70119.10 . Sufficient.

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Kudos [?]: 124811 [3], given: 12079

Current Student
Status: #TeamFuqua
Joined: 01 Jun 2010
Posts: 122

Kudos [?]: 30 [1], given: 205

Location: United States
Concentration: General Management, Strategy
GMAT 1: 580 Q37 V32
GMAT 2: 570 Q36 V32
GMAT 3: 680 Q44 V40
WE: Consulting (Consulting)
Re: At a souvenir shop, all posters are priced equally and all [#permalink]

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04 Feb 2014, 19:08
1
KUDOS
bulletpoint wrote:
At a souvenir shop, all posters are priced equally and all maps are priced equally. What is the total price of 8 posters and 6 maps at the souvenir shop?

1) At the souvenir shop, the total price of 4 posters and 3 maps is $39.70 2) At the souvenir shop, the total price of 12 posters and 9 maps is$119.10

This is such a classic GMAT question. It preys on our instinct to mark E by assuming that both conditions reduce to the same equation, not realizing that we don't really need the price of each poster or map.

Hindsight 20/20 though!
_________________

-MBAJunkie

Kudos [?]: 30 [1], given: 205

Manager
Joined: 18 Nov 2013
Posts: 79

Kudos [?]: 19 [0], given: 7

Location: India
GMAT Date: 12-26-2014
WE: Information Technology (Computer Software)
Re: At a souvenir shop, all posters are priced equally and all [#permalink]

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05 Feb 2014, 00:58
MBAjunkie16 wrote:
bulletpoint wrote:
At a souvenir shop, all posters are priced equally and all maps are priced equally. What is the total price of 8 posters and 6 maps at the souvenir shop?

1) At the souvenir shop, the total price of 4 posters and 3 maps is $39.70 2) At the souvenir shop, the total price of 12 posters and 9 maps is$119.10

This is such a classic GMAT question. It preys on our instinct to mark E by assuming that both conditions reduce to the same equation, not realizing that we don't really need the price of each poster or map.

Hindsight 20/20 though!

I just marked answer C and didn't realize that I can reduce the equation in each line to match the one asked in the question. Argh.

Kudos [?]: 19 [0], given: 7

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 17660

Kudos [?]: 272 [0], given: 0

Re: At a souvenir shop, all posters are priced equally and all [#permalink]

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29 May 2015, 09:36
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: At a souvenir shop, all posters are priced equally and all [#permalink]

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29 May 2015, 11:35
2
KUDOS
Expert's post
Hi All,

Chances are quite high that you'll see a DS question that tests this EXACT concept on Test Day (you'll likely see it just once, but it's an easy 'pick up' if you recognize it). The broader concept that is tested here is your ability to spot a 'multiple' of a given piece of information and use that pattern to avoid doing heavy calculations. Take note of any question that seems to ask for a really specific combination of items. Here, the question asks for the price of 8 posters and 6 maps....but WHY 8 and 6??? Whoever wrote this question chose those two numbers for a specific reason....maybe it's because we're supposed to look for multiples....

GMAT assassins aren't born, they're made,
Rich
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# Special Offer: Save $75 + GMAT Club Tests Free Official GMAT Exam Packs + 70 Pt. Improvement Guarantee www.empowergmat.com/ ***********************Select EMPOWERgmat Courses now include ALL 6 Official GMAC CATs!*********************** Kudos [?]: 3319 [2], given: 172 GMAT Club Legend Joined: 09 Sep 2013 Posts: 17660 Kudos [?]: 272 [0], given: 0 Re: At a souvenir shop, all posters are priced equally and all [#permalink] ### Show Tags 22 Jul 2016, 10:43 Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________ Kudos [?]: 272 [0], given: 0 GMAT Club Legend Joined: 09 Sep 2013 Posts: 17660 Kudos [?]: 272 [0], given: 0 Re: At a souvenir shop, all posters are priced equally and all [#permalink] ### Show Tags 17 Aug 2017, 02:44 Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________ Kudos [?]: 272 [0], given: 0 Director Joined: 19 Mar 2014 Posts: 828 Kudos [?]: 187 [0], given: 169 Location: India Concentration: Finance, Entrepreneurship GPA: 3.5 Re: At a souvenir shop, all posters are priced equally and all [#permalink] ### Show Tags 19 Aug 2017, 01:31 At a souvenir shop, all posters are priced equally and all maps are priced equally. What is the total price of 8 posters and 6 maps at the souvenir shop? This question can be tricky, we are asked for 8p + 6m ? 1) At the souvenir shop, the total price of 4 posters and 3 maps is$39.70

4p + 3m = 39.70 ==> Multiply this by 2

8p + 6m = 79.40

Hence, (1) ===== is SUFFICIENT

2) At the souvenir shop, the total price of 12 posters and 9 maps is \$119.10

12p + 9m = 119.10

$$12 * \frac{2}{3} * p + 9 * \frac{2}{3} * m = 119.10 * \frac{2}{3}$$

8p + 6m = 79.40

Hence, (2) ===== is SUFFICIENT

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Re: At a souvenir shop, all posters are priced equally and all   [#permalink] 19 Aug 2017, 01:31
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