By selling 66 metres of cloth a person gains the cost price of 22 metres. Find the gain percent.
Options:
A) 22% B) 22 1⁄2% C) 33% D) 33 1⁄3% E) None of these
Let C.P. of one metre of cloth = 1   then C.P. of 66 metres of cloth = 66   Gain = C.P. of 22 metres = 22   % gain = 22⁄66 × 100 = 331⁄3%   Shortcut method :   If on selling ‘x’ articles, a man gains equal to the C.P. of ‘y’ articles, then % gain = y⁄x × 100   ∴ % gain = = 22⁄66 × 100 = 331⁄3%   Answer 33 1⁄3%
<result>D</result>
By selling 66 metres of cloth a person gains the cost price of 22 metres. Find the gain percent.