cts - the person estimates to sell 100 bags at a profit of rs 10 per bag but unfortunately 10 are little defective and can be sold only at their cost price how much should the selling price of each in rupees of the good bag needs to be increased to meet his es - skillgun

person has to raise the profit of his 90 good bag to account for the loss of profit from the 10 bag.
The profit from 10 bags would had been Rs.100.
This profit should added to individual selling price amounts of the good 90 bags. Or Rupees 100/90 or 10/9 should be added to the selling price of each the good 90 bags to balance the loss.