Audu bought an article for ₦50,000 and sold it to Femi at a loss of x%. Femi later sold the article to Oche at a profit of 40%. If Femi made a profit of ₦10,000, find the value of x.
Worked solution (try it first)
Femi's 40% profit is of what he paid, C: 0.4C=10000, so C= ₦25,000.
So Audu sold for ₦25,000 an article that cost him ₦50,000, a loss of ₦25,000.
As a percentage of his cost: 5000025000×100%=50%, so x=50, option B.