Question

by selling an article fir ₹810 a loss of 10% is suffered find the cost price
answer should be 25​

Answer 1

Answer:

829

Step-by-step explanation:

Rs. 810/100*10

81

810-81=829

Selling price of an article=829

Answer 2

Answer:

Cost Price= Rs.900

Step-by-step explanation:

Given, Selling Price= Rs. 810

L%= 10%

We know that,

Loss= Cost Price- Selling Price

Loss= CP- 810

Now,

Loss%= ($\frac{L}{CP}$)× 100

10= ($\frac{CP-810}{CP}$)× 100

$\frac{10}{100\\}$ =$\frac{CP-810}{CP}$  [Cross Multiply}

$\frac{CP}{10}$ = CP-810

$\frac{CP}{10}$ - CP= -810

$\frac{CP-10 CP}{10}$ = -810

$\frac{-9 CP}{10}$= -810 [Cross Multiply]

CP= -810×$\frac{10}{-9}$

CP= Rs. 900

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