# Assume that y varies inversely as x. If y = 3.2 when x = 0.2, how do you find y when x = 1.6?

$y = 0.4$
y oo 1/x or y = k*1/x or x*y=k; y= 3.2 ; x=0.2 :. k=0.2*3.2=0.64 :. x*y=0.64Now $x = 1.6 \therefore y = \frac{0.64}{1.6} = 0.4$ [Ans]