Quandaries and Queries 

hi sir/madam iam mohamed 1012 i want to ask you : (if i bought some thing with 100$ and the saller told me that his profit was 30% how can i know the actual price of the good) thanks Mohamed Hi Mohamed, The seller bought this item for some amount you don't know, So I am going to call it x$. He then added 30% of this amount (that is his profit) and the resulting price was 144$. Thus x + ^{30}/_{100} x = 100 x = ^{100}/_{1.3} = 76.92$ 

