The product of x and y is a constant. If the value of x is increased by 50%, by what percentage must the value of y be decreased?
Choose the most appropriate option
A) 50%	B) 40%	C) 33 1⁄3%	D) 25%	E) 12 1⁄2%
Product of x and y = xy   If the value of x is increased by 50% , value of y needs to be = xy/(1.5 x ) = 2/3 y   Decrease in value of y = y - 2/3 y = 1/3 y   % decrease in value of y = (1/3 y)/y * 100%   =33 1⁄3%   Answer 33 1⁄3%
<result>C</result>
The product of x and y is a constant. If the value of x is increased by 50%, by what percentage must the value of y be decreased?