The cost of 10 tables is ₹ 7500. Find the number of tables that can be purchased with ₹ 9000.

Number of tables purchased in ₹7500 = 10
Number of tables purchased in ₹1 = 10 / 7500

∴ Number of tables purchased in ₹9000
= (10 × 9000) / 7500
= 12