Question

a man sold an article for $840 and suffered 20% loss. what is the cost price of article.​

Answer 1

Solution :-

Basic Method :-

Let us assume that, the cost price of article is $ 100x .

So,

→ CP = $ 100x

→ Loss = 20% of CP = (20 * 100x)/100 = $ 20x

then,

→ SP = CP - Loss = 100x - 20x = $ 80x .

A/q,

→ 80x = 840

→ x = (840/80)

→ 100x = (840/80) * 100 = $ 1050 (Ans.)

Hence, the cost price of article is $ 1050 .

Formula :-

→ CP = (SP * 100) / (100 - Loss %)

→ CP = (840 * 100)/(100 - 20)

→ CP = (840 * 100)/80

→ CP = $ 1050 (Ans.)

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Answer 2

Given:

A man sold an article for $840 and suffered a 20% loss.

To find:

what is the cost price of the article?

Solution:

We have given the Selling price and loss percentage.

Selling Price = $840

Loss % = 20%

The following is the formula to find the cost price of an article:

$= > \dfrac{100}{100 - loss\%} \times sp$

$= > \dfrac{100}{100 - 20} \times 840$

$= > \dfrac{100}{80} \times 840$

$= > \dfrac{84000}{80}$

$= > 1050$

Hence, the cost price of an article is $1050