The difference between the cost price and the selling price of a bat is 180.If there is a profit of 20%, then what is the selling price ofthe bat?
let C.P = Rs 100
Profit = 20%
      = 20% of 100
       =Rs 20
So S.P =120
Given that $$C.P - S.P$$ = 180
           20 = 180
           1 = 9
So,        120 = $$120\times 9$$
           = Rs 1080
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