Question

The cost of a book is 450. If the shopkeeper sells it a profit of 20%, find the price at which it is sold.

Answer 1

Question :

The cost of a book is 450. If the shopkeeper sells it a profit of 20%, find the price at which it is sold.

Answer :

$\sf\pink{Given:}$

• Cost price is 450 .

• Profit % is 20% .

$\sf\pink{To\:find:}$

• selling price ?

Explanation :

$\sf{selling\:price = \dfrac{100 + profit\: percent }{100}\times cost\:price}$

$\\ \longrightarrow\sf{ \dfrac{100 + 20}{100}\times 450}$

$\\ \longrightarrow\sf{ \dfrac{120}{100}\times 450}$

$\\ \longrightarrow\sf{ \dfrac{12}{10}\times 450}$

$\\ \longrightarrow\sf{ 540 }$

Therefore the selling price is Rs 540 .