How much $$66\frac{2}{3}$$% of Rs. 312 exceeds Rs. 200 ?

$$66\frac{2}{3}$$% of Rs. 312/- exceeds Rs. 200 by Rs. $$x$$
According to the question, required difference
$$\eqalign{ & x = {\text{Rs}}{\text{. }}\left( {312 \times \frac{{200}}{3}\% - 200} \right) \cr & x = {\text{Rs}}{\text{. }}\left( {312 \times \frac{{200}}{{3 \times 100}} - 200} \right) \cr & x = {\text{Rs}}{\text{. }}\left( {312 \times \frac{{200}}{{300}} - 200} \right) \cr & x = {\text{Rs}}{\text{. }}\left( {208 - 200} \right) \cr & x = {\text{Rs}}{\text{. 8}} \cr} $$