Question

By selling an article for Rs. $810$ , a loss of $10$ percent is suffered. Find its cost price.

Answer 1

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%$=\frac{Loss}{C.P.}\times 100$

$10=\frac{x-810}{x}\times 100$

$1=\frac{x-810}{x}\times 10$

$x=10x-8100$

$9x=8100$

$x=Rs.900$