By selling 39 articles, a person gets the profit equal to selling price of 9 articles. Find profit percent

30% 32% 40% 35%

30%

Profit = S.P. - C.P. ATQ, ⇒ S.P. of 9 = S.P. of 39 - C.P. of 39 ⇒ C.P. of 39 = S.P. of 30 ⇒ C.P.   :    S.P.  =  10 : 13 Profit = 3R Profit percent = \(\frac{3}{10}\) × 100 = 30%