By selling 88 pens, a trader gains the cost of 22 pens. Find his gain percentage?	Select.
A) 25 %	B) 26 %	C) 27 %	D) 28 %	E) 29 %

Rationale: let the cp of each pen be rs . 1 . cp of 88 pens = rs . 88 profit = cost of 22 pens = rs . 22 profit % = 22 / 88 * 100 = 25 % answer : a
Answer: A