At 6% profit, the selling price = 100+6= Tk. 106
& 4% less, the cost of the item = 100-4 =Tk. 96
Again, in 12.5% profit the selling price= TK.
Difference between selling price = 108-106= Tk. 2
In difference of Tk. 2 the cost price = Tk. 100
In difference of Tk. 4 the cost price = Tk.
