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What is the maximum number of pieces of birthday cake of size 4” by 4”

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What is the maximum number of pieces of birthday cake of size 4” by 4”  [#permalink]

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New post 10 Jan 2016, 07:15
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

85% (00:44) correct 15% (01:22) wrong based on 58 sessions

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Re: What is the maximum number of pieces of birthday cake of size 4” by 4”  [#permalink]

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New post 11 Jan 2016, 03:26
Bunuel wrote:
What is the maximum number of pieces of birthday cake of size 4” by 4” that can be cut from a cake 20” by 20”?

A. 5
B. 10
C. 16
D. 20
E. 25



Each length =20" each piece =4"

Cake could be divided to maximum of 25 pieces

Answer: E
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Re: What is the maximum number of pieces of birthday cake of size 4” by 4”  [#permalink]

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New post 14 Jan 2016, 23:23
1
Hi All,

This prompt asks a basic Geometry questions in a really 'clunky' way. The prompt refers to a 3-dimensional object (a piece of birthday cake), but refers to it in 2 dimensions. In that same way, the prompt refers to the entire cake (which is ALSO a 3-dimensional object) with just 2 dimensions. The actual GMAT would NOT present this type of question in this way.

The prompt is essentially asking for the maximum number of 4" x 4" squares that can be cut from a larger 20" by 20" square. Since each 'row' and each 'column' of the larger square can be sub-divided into 5 'pieces' each, we have (5)(5) = 25 total smaller squares (at maximum).

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Re: What is the maximum number of pieces of birthday cake of size 4” by 4”  [#permalink]

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New post 03 Jul 2016, 13:16
(20" * 20") / (4" * 4") = 25
Correct Answer - E

just a doubt aren't we supposed to know about height as the given structure is a cake which would be a 3D figure or are we supposed to consider it as a 2D figure and solve the question
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Re: What is the maximum number of pieces of birthday cake of size 4” by 4”   [#permalink] 03 Jul 2016, 13:16

What is the maximum number of pieces of birthday cake of size 4” by 4”

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