Question

a man sold an article for Rs 495 and gained 10% on it find the cost price of the article​

Answer 1

SP of an article = Rs.495

Gain% on an article = 10%

$\boxed{cp = \frac{sp \times 100}{100 + p} }$

$cp = \frac{495 \times 100}{100 + 10}$

$cp = \frac{49500}{110}$

$cp = \frac{4950}{11}$

$cp = 450$

Therefore CP of an article is RS. 450.