If A's height is 30% less than that of B, how much percent B's height is more than that of A?  Choose the most appropriate option.
A) 42.85 %	B) 66.68 %	C) 66.766 %	D) 86.66 %	E) 66.65 %

Rationale: excess of b ' s height over a ' s = [ ( 30 / ( 100 - 30 ) ] x 100 % = 42.85 % answer : a )
Answer: A