Question

By selling an article at rupees 1054.501054.50 a person and 11%11% profit. What would have been the percentage profit or loss if she had sold the article at rupees 855​

Answer 1

Answer:

Let Rs x be the cost price and Rsy be the the selling price of the 

article.

we know that

Gain%=(C.PGain×100)

∴5%=(y−x)×x100

⇒x=20(y−x)

⇒x=20y−20x

⇒x+20x=20y

⇒21x=20y

⇒y=2021x

When the selling price of the article is reduce by Rs50 then the 

new selling price of article =Rs(2021x−50)

we know that

Loss%=(C.Ploss×100)

5=[xx−{2021x−50}]×100

⇒x={20x−21x+50}×20

⇒x=[20{20x−21x+1000}]×20