If the sides of a square are multiplied by sqrt(5), the area of the original square is how many times as large as the area of the resultant square? Pick:
A) 5%  B) 20%  C) 50%  D) 100%  E) 120%
Let x be the original length of one side.   Then the original area is x^2.   The new square has sides of length sqrt(5)*x, so the area is 5x^2.   The area of the original square is 1/5 = 20% times the area of the new square.   The answer is 20%.
<result>B</result>
If the sides of a square are multiplied by sqrt(5), the area of the original square is how many times as large as the area of the resultant square?