If shoes are bought at prices ranging from Tk. 500 to Tk. 700 and sold at prices ranging from Tk. 650 to Tk. 900, what is the greatest possible profit from selling 8 pairs?

Question: If shoes are bought at prices ranging from Tk. 500 to Tk. 700 and sold at prices ranging from Tk. 650 to Tk. 900, what is the greatest possible profit from selling 8 pairs?Solution:Lowest total cost price = 8 × 500 = Tk. 4000Highest total selling price = 8 × 900 = Tk. 7200Greatest profit = 7200 − 4000 = Tk. 3200