The selling price of 35 articles is equal to the cost price of 42 articles. Find the profit or loss percentage.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 20%
Profit per cent is always taken on the cost price. Comparing the same number of articles (35) gives the cost and the selling price directly.
Let the cost price of one article be Rs 1
Cost price of 35 articles \(=\) Rs 35
Selling price of 35 articles \(=\) cost price of 42 articles \(=\) Rs 42
Selling price is more than cost price, so it is a profit of \(42-35=\) Rs 7
Profit % \(\displaystyle =\frac{7}{35}\times100=20\%\)
There is a profit of 20%.