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# QOTD#29 Ann wants to make cookies, but she only has 2 eggs a

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Joined: 07 Jun 2014
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QOTD#29 Ann wants to make cookies, but she only has 2 eggs a [#permalink]  31 May 2017, 06:38
Expert's post
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Question Stats:

0% (00:00) correct 100% (00:00) wrong based on 1 sessions
Ann wants to make cookies, but she only has 2 eggs and the recipe calls for 3. If the recipe calls for 3 cups of flour, 1 cup of sugar, and $$\frac{1}{2}$$ cup of butter, how many cups of butter will she need to use?

Drill 2
Question: 2
Page: 340

[Reveal] Spoiler: OA
$$\frac{1}{3}$$

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GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4756
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1668 [0], given: 396

Re: QOTD#29 Ann wants to make cookies, but she only has 2 eggs a [#permalink]  04 Jun 2017, 15:15
Expert's post
Explanation

Set up a ratio box.

Attachment:

DI Upload.jpg [ 20.14 KiB | Viewed 861 times ]

Put the recipe’s original ratio of ingredients in the top row and start with 2 eggs in the “actual” row.

This makes your multiplier $$\frac{2}{3}$$.

Fill out the rest of the ratio box to determine the number of cups of butter.

Hence $$\frac{1}{3}$$ is correct!
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Sandy
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Joined: 26 Aug 2017
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Re: QOTD#29 Ann wants to make cookies, but she only has 2 eggs a [#permalink]  27 Aug 2017, 02:19
A 1/2 is missing in the question where it says 'cups of butter'. Was wondering why it got my answer wrong (because I took 1 instead).
GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4756
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1668 [0], given: 396

Re: QOTD#29 Ann wants to make cookies, but she only has 2 eggs a [#permalink]  27 Aug 2017, 03:11
Expert's post
jezzsk8 wrote:
A 1/2 is missing in the question where it says 'cups of butter'. Was wondering why it got my answer wrong (because I took 1 instead).

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Sandy
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Re: QOTD#29 Ann wants to make cookies, but she only has 2 eggs a   [#permalink] 27 Aug 2017, 03:11
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