Question
The cost price of 12 articles is equal to the selling
price of 9 articles while the discount (D) on 8 articles is equal to the profit (P) on 6 articles. Find the difference between profit % and discount %.Solution
12×CP =9×SP 8×D =6×P 
Percentage of (D)= (3/19) ×100 =15.79% P% -D% =33.33% -15.79% =17.5%.
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