Rohit sells two articles for Rs.51. He sells 1st at 30% loss and 2nd at 25% profit. Find the amount of overall profit/loss if the cost price of 1st article is equal to the selling price of 2nd article.

Rs.3

                    CP       :          SP                     30% = \(\frac{3}{10}\)

1st   →          10       :           7                      25% = \(\frac{8}{10}\)

2nd  →           8       :          10                    (CP of first  =  SP of 2nd)

               ——————————————     

                     18      =         17

Loss = 18 - 17 = 1R

17R = Rs.51

1R = Rs.3