Question

an article was sold for rupee 550with a profit of of 10% what was the cost price of the special question​

Answer 1

Answer:

cp=500

Explanation:

cp = (100/100+profit%)×sp

= (100/100+10)×550

=100/110×550

=100×5

=500

Answer 2

$\small \bf \red{Let\; the\; Cost\; Price\; be\; Rs\; x}$

$\bf\red{S.P = C.P + Profit}$

$\bf \red{\implies550 = x + 10 \% \: of \: x}$

$\bf \red{\implies550 = \frac{x + 10x}{100}}$

$\bf \red{\implies550 = \frac{ x + x}{10}}$

$\bf \red{\implies550 = \frac{11x}{10}}$

$\bf \red{\implies \: x = \frac{550 \times 10}{11}}$

$\bf \red{\implies x = 50 \times 10}$

$\bf \red{\implies x = 500}$

$\bf\green{Cost\; Price = Rs \;500}$