To find cost price or selling price when profit or loss is given are discussed here.



For example:

1. Maria sold a bicycle for $ 24900 at a profit of $ 600. Find the price at which she bought it.

Solution:

Selling Price = $ 24900

Profit = $ 600

Cost Price = Selling Price – Profit

Cost Price = 24900 – 600

= $ 24300

Therefore, Maria bought it at $ 24300.

Answer: $ 24300



2. Ron has a cycle worth $ 1800 and he wants to sell it at a profit of $ 220. What should cycles selling price be?

Solution:

Cost Price = $ 1800

Profit = $ 220

Selling Price = Cost Price + Profit

Selling Price = 1800 + 220

= $ 2020

Selling price of the cycle = $ 2020

Answers: $ 2020



3. Diane sold a book worth $ 850 at a loss of $ 180. Find the selling price of the book.

Solution:

Cost Price = $ 850

Loss = $ 180

Since, Selling Price = Cost Price + Loss

Selling Price = 850 - 180

= $670

Therefore, selling price of the book = $ 670

Answers: $ 670



4. If a chair was sold for $ 990 at a loss of $ 110. Find the cost price of the chair.

Solution:

Selling Price = $ 990,

Loss = $ 110

Cost Price = Selling Price + Loss

Cost Price = 990 + 110

= $ 1100

Therefore, cost price of the chair = $ 1100

Answers: $ 1100