If 20% of a = b, then b% of 20 is the same as: Choose the correct answer
A) None of these
B) 10% of a
C) 4% of a
D) 20% of a
E) 30% of a
Explanation:   20% of a=b   b=20a/100=a/5   b% of 20=20 x b/100   =b/5=a/5x1/5=a/25   =4a/100=4% of a   ANSWER IS 4% of a
<result>C</result>
If 20% of a = b, then b% of 20 is the same as: