1. ## Percentages

Hi,

May I be assisted with the following please?

1.) A book was sold for $45 at a loss of 10%. What was the original price?$\displaystyle 10 \% \times 45 = 4.5\displaystyle \$45 + 4.5 = \$49.5\displaystyle \rm{Original \ Price} = \$49.5$

2.) A man bought a chair for $350. He sold it at a profit of 25%. How much was the selling price?$\displaystyle 350 \times 0.25\displaystyle = 87.5\displaystyle \rm{Selling \ Price} = 87.5 + \$350 = \$437.50$2. ## Re: Percentages Edit2: This post was editted after I made a mistake. 1) I think 1 is incorrect. The man sold the book for$45 which was a 10% loss.

This means that he only sold the book at 90% of the original price.
Which means that $\displaystyle 0.9x=45$ where $\displaystyle x$ is the original price in dollars.

2) Is fine.