What is the maximum number of pieces of birthday cake of size 4” by 4” that can be cut from a cake 20” by 20”?
Choose the correct choice from the following options
A) 5	B) 10	C) 16	D) 20	E) 25

Rationale: "each length = 20 ' ' each piece = 4 ' ' cake could be divided to maximum of 25 pieces answer : e"
Answer: E