Aptitude for cat,ssc,gate and other placement exams
A shopkeeper cheats 10% while purchasing and 10% by selling then find out percentage of profit earned by the shopkeeper.
'A' sells an article to 'B' at 10% profit and 'B' sells back to 'A' and get 5% profit if he gets Rs 1000 from A. Than find how much profit did A get in whole transection.
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