Question

by selling an article for rupees 900 a person lost 10% find the cost price of the article​

Answer 1

Step-by-step explanation:

Let the cost price of the article be ' x '

Since the person lost 10% on cost price

Then find the loss :

loss = 10 % of cost price = 10 % of x = 0.1 x

since, the selling price of article=Rs 900

then , solve for ' x '

x - 0.1 x = 900

x ( 1 - 0.1 ) = 9000.9 x = 900 ==> x = Rs 1000

therefore,

the cost price of the article was Rs 1000.

Answer : cost price = Rs 1000

Answer 2

AnswEr :

• SP of Article = Rs. 900
• Loss% = 10%
• CP of Article = ?

⇒ $\mathsf{SP =CP \: \times \dfrac{(100 - loss\%)}{100} }$

⇒ $\mathsf{900 =CP \: \times \dfrac{(100 - 10\%)}{100} }$

⇒ $\mathsf{ \cancel{900} =CP \: \times \dfrac{ \cancel{90}}{100} }$

⇒ $\mathsf{10 = CP \: \times \dfrac{1}{100} }$

⇒ $\mathsf{ CP = 10 \times 100}$

⇒ $\mathsf{ CP = Rs. \: 1000}$

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჻ Cost Price of Article is Rs. 1000