The ratio 6 : 3 expressed as a percent equals
Choose one.
A) 12.5 %  B) 40 %  C) 80 %  D) 200 %  E) none

Rationale: "solution 6 : 3 = 6 / 3 = ( 6 / 3 x 100 ) % . = 200 % . answer d"
Answer: D