What is the profit percentage of a shopkeeper if the selling price is four times the value of 1/3rd of the buying price?

In the previous topic of this chapter we have discussed about cost price, selling price, profit, loss, profit percent and loss percent. Let us revise them once in short. 

Cost price: cost price is the price at which a commodity is purchased by a shopkeeper from dealer or merchant.

Selling price: selling price is the price at which a commodity is sold by shopkeeper to the customers.

Profit: when a shopkeeper sells a commodity to a customer at a price more than the cost price, then he gets a profit.

Profit = selling price – cost price

           = S.P. – C.P.

Profit percent = \(\frac{S.P. - C.P.}{C.P.}\) x 100 %

Loss: When a shopkeeper sells a commodity to a customer at a price lower than the cost price, then he suffers a loss.

Loss = Cost Price – Selling Price

       = C.P. – S.P. 

Loss percent = \(\frac{C.P. - S.P.}{C.P.}\) x 100 %

Now let us solve some problems based upon these concepts.

1. A shopkeeper buys t-shirts from a dealer at rate of Rs 700 per t-shirt. He sells them at a rate of Rs 850 per t-shirt. He buys 10 t-shirts of same type and at same rate. Find the overall profit/loss. Also profit percent/ loss percent.

Solution:

cost price rate = Rs 700per t-shirt

Total cost price = Rs 700 x 10

                       = Rs 7000

Selling price rate = Rs 850 per t-shirt

Total selling price = Rs 8500

Since, total cost price is less than total selling price. So, the shopkeeper will have profit.

Profit = total selling price - total cost price

        = Rs 8500 - Rs 7000

        = Rs 1500

Profit percent = \(\frac{1500}{7000}\) x 100 %

                    = 21.42%

2. A shopkeeper sells a refrigerator for Rs12,500 with a loss of Rs1500. Find the price at which he had bought it from dealer. Also calculate the loss percent.

Solution:

Selling price of the refrigerator = Rs 12,500

Loss suffered by the shopkeeper = Rs 1,500

Cost price = ?

We know that, Selling price = Cost Price – Loss

So, Cost Price = Selling Price + Loss

Cost Price = Rs 12,500 + Rs1,500

               = Rs 14,000

Loss percent = \(\frac{Loss}{C.P.}\) x 100 %

                   =  \(\frac{1500}{14000}\) x 100%

                   = 10.715

3. A shopkeeper sells a refrigerator at cost price of Rs 15000 with a profit of 20%. Find the price at which customer has purchased it. Also find profit gained by the shopkeeper.

Solution:

Cost price = Rs 15000

Profit percent = 20%

Profit = cost price x profit percent

Profit = \(\frac{15000}{20} \times \frac{1}{100}\)

Profit = Rs 3,000

Selling price = cost price + profit

                   = Rs 15000 + Rs 3,000

                    = Rs 18,000

So, the amount payed by customer to the shopkeeper = Rs 18,000.

4. A shopkeeper sells a television set at Rs 25,000 to a customer making a profit of Rs 2,000 at the set. Find the price at which he must have bought it from the dealer. Also find the profit percent.

Solution:

Selling price of television set = Rs 25,000

Profit = Rs 2,000

We know that S.P. = C.P. + Profit

So, C.P. = S.P. – Profit

C.P. = Rs 25,000 – Rs 2,000

C.P. = Rs 23,000

Profit percent = \(\frac{S.P. - C.P.}{C.P.}\) x 100 %

                    = \(\frac{Profit}{C.P.}\) x 100 %

                    = \(\frac{2000}{23000}\) x 100 %

                    = 8.69%

Profit and Loss

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Worksheet on Cost Price, Selling Price and Rates of Profit and Loss

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Successive Discount

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9th Grade Math

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To answer what is profit we have to go back a bit. Instead of providing a profit definition, let's do in a more natural way - you have an item you wish to sell. It doesn't matter whether you're selling homemade beauty products or just reselling some old clothes - producing items or acquiring them always has a cost. For the sake of simplicity, let's assume that each item you sell has the same cost per product, regardless of how many you sell. This is usually the case for small businesses or individuals.

Keep in mind that it will be different when talking about large production lines. For example car companies tend to enjoy economies of scale - the more cars they produce, the cheaper it gets to build each of them. It means that the objects marginal cost, the cost added by creating an additional unit, is decreasing. The change in price depends on the actual level of production.

Every item you wish to sell has a sale price. When you sell the item, this price becomes your income or revenue. In other words, revenue is the money generated from selling things. The more items you sell, the higher your revenue will be.

Profit is the difference between the price and cost when talking about one item. When dealing with higher volumes of items, total profit is the difference between revenue and total cost. Generally speaking, profit is the incentive behind the majority of business transactions. One side wants to buy a product or a service, and the other wants to sell it for a profit.

To recap and understand what is profit:

• first remember that cost is money spent,
• then revenue is money earned,
• and finally profit is money gained.