The ratio 4:20 expressed as percent equals to Choose the correct answer.
A) 20 %	B) 25 %	C) 55 %	D) 65 %	E) none of above

Rationale: explanation : actually it means 4 is what percent of 20 , which can be calculated as , ( 4 / 20 ) * 100 = 4 * 5 = 20 answer : option a
Answer: A