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

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At a souvenir shop, all posters are priced equally and all [#permalink] New post 15 Oct 2013, 07:04
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Question Stats:

63% (01:33) correct 37% (00:16) wrong based on 96 sessions
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
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Re: At a souvenir shop, all posters are priced equally and all [#permalink] New post 15 Oct 2013, 07:08
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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.

Answer: D.
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Re: At a souvenir shop, all posters are priced equally and all [#permalink] New post 04 Feb 2014, 18:08
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! :roll:
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Re: At a souvenir shop, all posters are priced equally and all [#permalink] New post 04 Feb 2014, 23:58
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! :roll:

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. :x
Re: At a souvenir shop, all posters are priced equally and all   [#permalink] 04 Feb 2014, 23:58
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