Question

answer next step in linear equation ​

Answer 1

Answer:

Selling price of article, S.P.=Rs.810

Percentage Loss =10%

Let cost price is x

then Loss =C.P.−S.P.=x−810

Now, Loss%=

C.P.

Loss

×100

10=

x

x−810

×100

1=

x

x−810

×10

x=10x−8100

9x=8100

x=Rs.900

Step-by-step explanation:

I hope it is clear to you.

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Answer 2

Correct Question :

On selling an article for Rs. 810 , a loss of 10% is suffered. Find its cost price .

Solution :

Let us assume that the cost price of the given article is Rs. A

On selling this item for Rs. 810 , a loss of 10% is suffered .

Thus we can gather that the selling price is only 90% of the given cost price.

=> 90% of A = 810

=> ( 90/100 ) A = 810

=> ( 9/10 ) A = 810

=> 9A = 8100

=> A = 900 .

Thus , the required cost price becomes Rs. 900 .

This is the answer .

An alternative method is to follow the steps in the solution attached as the question .

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Given linear equation :

x - 810 = x/10

Transposing x/10 to the LHS and 810 to the RHS we get :

=> x - x/10 = 810

=> { 10x - x }/10 = 810

=> 9/10 x = 810

=> x = 900 .

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