SSC CGL/CAT QUESTION WITH TRICK If the income tax is increased by 19 % , the net income is reduced by 1 % .The rate of income tax is what?

   If the income tax is increased by 19 % , the net income is reduced by 1 % .The rate of income tax is

(a)  6 %                         (b) 4 %                       (c) 5 %                       (d) 7.2 %

 Third trick see the video