itzmyzone911 wrote:

A small table has a length of 12 inches and a breadth of b inches. Cubes are placed on the surface of the table so as to cover the entire surface. The maximum side of such cubes is found to be 4 inches. Also, a few such tables are arranged to form a square. The minimum length of side possible for such a square is 48 inches. Find b.

A. 8

B. 16

C. 24

D. 32

E. 48

Info 1: Maximum side of the cube: 4 inches.

Choices A, B, D possible i.e., 12,8 possible, 12, 16 possible, 32, 12 possible. For choices c and e greater cube sides possible. So ruled out

Info 2:Minimum size of the square:48 inches

For choice a 24 inch square possible , so ruled out . For choice D 48 inch square not possible. So ruled out

For choice b minimum 48 inch square possible, so is the right choice

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Srinivasan Vaidyaraman

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