An article is sold at 10 percent loss. If its cost price is decreased by Rs.5 and selling price is increased by Rs.8, then profit of 10 percent is earned on it. What is the original selling price of the article?

Rs. 60.75

Loss = 10%

              CP                 SP

             10                9

If its cost price is decreased by Rs.5 and selling price is increased by Rs.8, then profit of 10 percent is earned means,

              CP                 SP

             10                9

             10               11                            ( Applying cross multiply method)

             -5               +8

         ———————————

         (10 × 11)x - (10× 9)x = (10 × 8) - (-(5 × 11)

            20X = 135

              x   = 6.75

Original SP = 9x = 9 × 6.75 = 60.75