Shortcut trick on profit and loss

Shortcut trick on profit and loss

The five most important question types asked in competitive exams with detailed explanation :

 1     If a man purchases a items for Rs.b and sells c items for Rs. D  then the gain or loss depending upon the +ve or –ve sign in final made by him is given by

                                                            

                Explanation:

                Cost price of the article: b/a

                Selling price of the article: d/c

                Profit : (d/c-b/a)*100/b/a  =   (ad-bc)*100/bc