If the sides of a square are multiplied by 10, the area of the original square is how many times as large as the area of the resultant square?
Choose the correct choice from the following options: A) 1 % B) 10 % C) 100 % D) 500 % E) 1000 %

Rationale: let x be the original length of one side . then the original area is x ^ 2 . the new square has sides of length 10 x , so the area is 100 x ^ 2 . the area of the original square is 1 / 100 = 1 % times the area of the new square . the answer is a .
Answer: A