Question

A shopkeeper buys a pen for Rs 5 and wants to earn 100 % profit from it. What should be the selling

price of the pen?​

Answer 1

Answer:

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Answer 2

The selling price of the pen should be Rs. 10.

Given,

A shopkeeper buys a pen for Rs 5 and wants to earn 100 % profit from it.

To Find,

What should be the selling price of the pen?

Solution,

We can solve the question as follows:

It is given that a shopkeeper buys a pen for Rs 5 and wants to earn 100 % profit from it. We have to find the selling price of the pen.

$Cost\: price = Rs.\: 5$

$Profit = 100$%

$Selling\: price =?$

The formula for finding the profit percentage is given as:

$Profit\: percentage = \frac{Selling\: price - Cost\: price}{Cost\: price} *100$

Substituting the values in the above formula,

$100 = \frac{Selling\: price - 5}{5} *100$

$\frac{100}{100} = \frac{Selling\: price - 5}{5}$

$1 = \frac{Selling\: price -5}{5}$

$5*1 = Selling\: price - 5$

$Selling\: price = 5 + 5 = Rs.\: 10$

Hence, the selling price of the pen should be Rs. 10.