The ratio 2:10 expressed as percent equals to Choose one.
A) 50 % B) 30 % C) 25 % D) 20 % E) 90 %

Rationale: "explanation : actually it means 2 is what percent of 10 , which can be calculated as , ( 2 / 10 ) * 100 = 2 * 10 = 20 answer : option d"
Answer: D