Use some thinking to answer the following question. What is the maximum number of pieces of birthday cake of size 10" by 10" that can be cut from a cake 20" by 20"?
Options:
(A) 4
(B) 10
(C) 16
(D) 20
(E) 25
The prompt is essentially asking for the maximum number of 10 x 10 squares that can be cut from a larger 20 by 20square. Since each 'row' and each 'column' of the larger square can be sub-divided into 2 'pieces' each, we have (2)(2) = 4 total smaller squares (at maximum). So the final answer is (A).