a is x % of b, b is x% more than a. Find x.
Select the correct option.
A) 50%
B) 62%
C) 75%
D) 37%
E) 39%
DETAILED SOLUTION   a = bx   b = a (1 + x), substituting this in the previous equation, we get   x (x + 1) = 1   x2 + x - 1 (  + 1)= 
<gadget id="calculator">(  + 1)</gadget>
<output>1</output>
1   x2 + x - 1= 0   or x is approximately 0.62 or 62%.   Correct Answer: (62%).
<result>B</result>
a is x % of b, b is x% more than a. Find x.