Question

11. The selling price of an article is double its cost price. Find the gain or loss percent??​

Answer 1

$\sf\huge\bold{Solution}$

Given

Selling price of an article is double its cost price.

To Find

Gain or loss percentage

Basic terms and concepts:

=>The cost at which an articles is purchased is called its cost price (CP)

=>The cost at which an articles sold is called its selling price (SP).

⋆If SP is greater than CP then it is profit or gain.

⋆If CP is greater than SP then it is loss.

___________________________________________

Come to the question=>

Let the cost price be 'x'

then the selling price =2x[Given]

Here, SP>CP so,it's a Profit.

=> Profit =2x-x= x

we have to find profit/gain percentage

$\boxed{\sf Gain \% = \left(\dfrac{Gain \times 100}{CP}\right)}$

$\sf \longmapsto \dfrac{x \times 100}{x}$

$\sf \longmapsto100$

Gain =100%

Answer 2

Answer:

Solution

Given

Selling price of an article is double its cost price.

To Find

Gain or loss percentage

Basic terms and concepts:

=>The cost at which an articles is purchased is called its cost price (CP)

=>The cost at which an articles sold is called its selling price (SP).

⋆If SP is greater than CP then it is profit or gain.

⋆If CP is greater than SP then it is loss.

___________________________________________

Come to the question=>

Let the cost price be 'x'

then the selling price =2x[Given]

Here, SP>CP so,it's a Profit.

=> Profit =2x-x= x

we have to find profit/gain percentage

\boxed{\sf Gain \% = \left(\dfrac{Gain \times 100}{CP}\right)}

Gain%=(

CP

Gain×100

)

\sf \longmapsto \dfrac{x \times 100}{x}⟼

x

x×100

\sf \longmapsto100⟼100

Gain =100%

Step-by-step explanation:

hope it helps...