A school principal places orders for 85 chairs and 25 tables with a dealer. Each chair cost ₹180 and each table cost ₹140. If the principal has given ₹2500 to the dealer as an advance money, then what amount to be given to the dealer now?
Number of chairs = 85
Cost of one chair = ₹180
Cost of 85 chairs = ₹(85 × 180)
Number of tables = 25
Cost of one table = ₹140
Cost of 25 tables = ₹(25 × 140)
Total cost of all chairs and tables = ₹(85 × 180 + 25 × 140)
= ₹(15300 + 3500) = ₹ 18800
Money given in advance = ₹2500
∴ Balance money to be paid to the dealer = ₹18800 – ₹2500 = ₹16300