The marked price of an article is ₹1,280. If a shopkeeper sold the article at 12% profit after giving 30% discount, then the cost price of the article is:

₹800

        CP                    MP

      100 - D%           100 + P%

     100 - 30%           100 + 12%

         70                      112

         ⇓×  \(\frac{80}{7}\)             ⇓× \(\frac{80}{7}\)

        800                  1,280 Given