If 20% of a = b, then b% of 20 is the same as :  Choose the correct option
A) 4% of a
B) 6% of a
C) 8% of a
D) 10% of a
E) 12% of a
Explanation:   20% of a = b =&gt;20/100 a=b   b% of 20 =b/100 x 20 =20 a/100 x 1/100 x 20 =4a/100 =4% of a.   4% of aNSWER IS 4% of a
<result>A</result>
If 20% of a = b, then b% of 20 is the same as :