GRE Question of the Day (September 23)

In an empty square field, n rows of n trees are planted so that the whole field is filled with trees. If k of these trees lie along the boundary of the field, which of the following is a possible value for k?

A. 14

B. 49

C. 86

D. 125

E. 276

 

 

Correct Answer - E - (click and drag your mouse to see the answer)