If 15 apples cost as much as 6 strawberries, 2 strawberries cost as much as 16 bananas, 6 bananas cost as much as 15 potatoes, then what is the cost of 1 potato if an apple costs ₹ 20?

• A. ₹ 25
• B. ₹ 22.50
• C. ₹ 2.50
• D. ₹ 2.25