Question

The percentage profit earned by selling an article for rs 2880 is equal to the percentage loss incurred by selling the same article for rs 1920.at what price the article should be sold to earn 25% profit?

Answer 1

Let c.p be Rs .Y   then,1920 -Y /Y ×100=Y-1280/Y ×100

                                        ⇒1920-Y=Y-1280

                                         ⇒2Y=3200

                                         ⇒Y=1600

REQURIED S.P=125%OF RS 

                    1600=(125/100×1600)

                             RS=2000