SOLUTION: On a square gameboard this 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 of k?

SOLUTION: On a square gameboard this 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 of k?

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Question 393640: On a square gameboard this 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 of k?
A. 10 B. 25 C. 34 D. 42 E. 52
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
k must have the form . Hence k must be divisible by 4. The answer is E, because 52 is the only number divisible by 4.
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