An article is sold at a certain price. By selling it at 2/3 of that price one loses 10%. Find the gain percent at original price.	Choose the correct choice from the following.
A) 15 %	B) 35 %	C) 25 %	D) 50 %	E) 30 %

Rationale: "let the original s . p be rs . x . then new s . p = rs . 2 / 3 x , loss = 10 % so c . p = rs . [ 100 / 90 * 2 / 3 x ] = 20 x / 27 . now c . p = rs . 20 x / 27 , s . p = rs . x , gain = rs . [ x - 20 x / 27 ] = rs . 7 x / 27 . gain % = [ 7 x / 27 * 27 / 20 x * 100 ] % = 35 % answer : b"
Answer: B