Ionic Equilibrium Part 2

The molar conductance of an infinitely dilute solution of ammonium chloride was found to be 185Scm2mol−1 and the ionic conductance of hydroxyl and chloride ions are 170 and 70Scm2mol−1, respectively. If molar conductance of 0.02 M solution of ammonium hydroxide is 85.5Scm2mol−1, its degree of dissociation is given by x×10−1.
The value of x is ____ . (Nearest integer)