Step-by-step EXPLANATION:

Let the cost PRICE of 10 chairs be RUPEES 10

Let the cost price of 10 chairs be rupees 10Then cost price of 1 chair is rupees 1

Let the cost price of 10 chairs be rupees 10Then cost price of 1 chair is rupees 1Selling price of 16 chairs is rupees 10

Let the cost price of 10 chairs be rupees 10Then cost price of 1 chair is rupees 1Selling price of 16 chairs is rupees 10Cost price of 16 chairs is rupees 16

Let the cost price of 10 chairs be rupees 10Then cost price of 1 chair is rupees 1Selling price of 16 chairs is rupees 10Cost price of 16 chairs is rupees 16lost price is 16-10 = 6

Let the cost price of 10 chairs be rupees 10Then cost price of 1 chair is rupees 1Selling price of 16 chairs is rupees 10Cost price of 16 chairs is rupees 16lost price is 16-10 = 6lost percentage =(6/16)*100

Let the cost price of 10 chairs be rupees 10Then cost price of 1 chair is rupees 1Selling price of 16 chairs is rupees 10Cost price of 16 chairs is rupees 16lost price is 16-10 = 6lost percentage =(6/16)*100Answer =37.5%