The product of x and y is a constant. If the value of x is increased by 60%, by what percentage must the value of y be decreased?	Choose the correct choice from the following choices:
A) 30%
B) 32%
C) 35%
D) 37.5%
E) 40%
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; 1.6x (120)   i.e. 160*New 'y'= 10000   i.e. New 'y' = 10000/160= 
<gadget id="calculator">10000/160</gadget>
<output>125/2 = around 62.5</output>
62.5   i.e. y decreases from 100 to 62.5 i.e. 37.5%ecrease of 37.5%   Answer: option 37.5%
<result>D</result>
The product of x and y is a constant. If the value of x is increased by 60%, by what percentage must the value of y be decreased?