The cost price of 27 articles is the same as the selling price of 18 articles. What is the gain or loss percentage?
Answer & explanation
Correct answer: option 1
Cost price of 27 articles = Selling price of 18 articles
\(\frac{CP}{SP}\) = \(\frac{18}{27}\)
Profit = 9
Profit% = 9 × \(\frac{100}{18}\) = 50%