A person bought an article for Rs.1000/- and sold it at a loss of 35%. He purchased a new article with that money and sold it at a gain of 40%. Find his overall percentage of profit or loss.

9% (loss) 9% (profit) 11% (loss) 11% (profit)

9% (loss)

C.P.1 : S.P.1 or C.P.2 :  S.P.2  100  :        65          :   91  {65 × 140% = 91} ⇒  C.P.1     :       S.P.2     100       :        91     ⇒     9% (loss)