Answers

2015-05-08T19:37:33+05:30
CP  20    15      375

SP 25      20    400
 JUST DO CROSS MULTIPLICATION ie  25 * 15 = 375 and 20 * 20 =400
     profit = SP - CP  400 - 375 = 25 
         profit% = profit/cp * 100    25/375* 100 =  100/15 = 6* 2/3
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