If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ? Choose the correct choice from the following answers
A) 20%  B) 25%  C) 18%  D) 30%  E) none of these
Here, l = 7 and m = 28   Therefore, first number = l/m x 100% of second number = 7/28 x 100% of second number = 25% of second number   ANSWER:25%
<result>B</result>
If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ?