If the price of gold increases by 50%, find by how much the quantity of ornaments must be reduced, so that the expenditure may remain the same as before?
Choose the correct choice from the following answers.
A) 331/8%
B) 331/3%
C) 338/3%
D) 391/3%
E) 311/3%
100   150   ------   150-------50   100-------? =&gt; 331/3%   Answer: 331/3%
<result>B</result>
If the price of gold increases by 50%, find by how much the quantity of ornaments must be reduced, so that the expenditure may remain the same as before?