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On a square gameboard that is divided into n rows of n squares each, k
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13 Jun 2022, 01:00
13 Jun 2022, 01:00
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Question Stats:
75% (01:49) correct
25% (02:37) wrong based on 8 sessions
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On a square gameboard that is divided into n rows of n squares each, k of these squares lie along the boundary of the gameboard. Which of the following is a possible value for k?
A. 10
B. 25
C. 34
D. 42
E. 52
A. 10
B. 25
C. 34
D. 42
E. 52
Part of the project: GRE QCQ & PS 3 Questions Every One DAILY Challenge - (2022)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
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Joined: 10 Apr 2015
Posts: 6218
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On a square gameboard that is divided into n rows of n squares each, k
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13 Jun 2022, 06:07
13 Jun 2022, 06:07
3
Carcass wrote:
On a square gameboard that is divided into n rows of n squares each, k of these squares lie along the boundary of the gameboard. Which of the following is a possible value for k?
A. 10
B. 25
C. 34
D. 42
E. 52
A. 10
B. 25
C. 34
D. 42
E. 52
Let's begin with an n by n square
We can divide the squares lying along the boundary of the game board into 4 groups of n-1 squares.
So, the total number of squares lying along the boundary of the gameboard = k = 4(n - 1)
Since k must be a multiple of 4, the correct answer must be E (since that's the only answer choice that's divisible by 4)
Answer: E
General Discussion
Re: On a square gameboard that is divided into n rows of n squares each, k
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20 Jul 2023, 18:40
20 Jul 2023, 18:40
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