Correct Answer - Option 2 : 90%
Given
Cost price = Rs.1,00,000
Selling Price = Rs 1,90,000
Formula used
Selling price is greater than cost price so its a profit.
Profit = Selling price - Cost price
Profit% = (profit/cost price) × 100
Calculation
Profit = Rs.1,90,000 - Rs.1,00,000
= Rs 90,000
Profit% = (90,000/1,00,000) × 100
= 90%