The product of x and y is a constant. If the value of x is increased by 30%, by what percentage must the value of y be decreased?	Choose the correct choice from the following options.
A) 16% B) 23.07% C) 25% D) 30% E) 35%
x*y = constt.   Let x = y = 100 in beginning   i.e. x*y = 100*100= 
<gadget id="calculator">100*100</gadget>
<output>10_000</output>
10000   x (100) ---becomes---&gt; 1.3x (130)   i.e. 130*New 'y'= 10000   i.e. New 'y' = 10000/130 = 76.92   i.e. y decreases from 100 to 76.92 i.e. Decrease of 23.07%   23.07%
<result>B</result>
The product of x and y is a constant. If the value of x is increased by 30%, by what percentage must the value of y be decreased?