The difference between a discount of 30% on Rs. 2000 and two successive discounts of 25% and 5% on the same amount is ?

1st discount = 30%
Two successive discount to a single discount
$$\eqalign{ & = 25 + 5 - \frac{{25 \times 5}}{{100}} \cr & = 30 - 1.25 \cr & {\text{Difference}}\% {\text{ }} \cr & = {\text{ }}30 - 30 + 1.25 \cr & = {\text{ }}1.25\% \cr & {\text{Difference amount}} \cr & = 1.25\% \,{\text{of }}2000 \cr & = \frac{{1.25}}{{100}} \times 2000 \cr & = {\text{Rs}}{\text{. }}25 \cr} $$