Meenal purchased a car for $Rs. 2,50,000$ and sold it for $Rs. 3,48,000$. What is the percent profit she made on the car?

The ratio between the selling price and the cost price of an article is $7:5$. What is the ratio between the profit and the cost price of that article?

Divyam bought an article with $15 \%$ discount on the labelled price. He sold the article with $10 \%$ profit on the labelled price. What was his percent profit on the price he bought?

By selling an article for $Rs. 384$,a trader gains $20 \%$. Find the cost price of the article.

By selling an umbrella for $Rs. 300$,a shopkeeper gains $20 \%$. During a clearance sale,the shopkeeper allows a discount of $10 \%$ on the marked price. His gain per cent during the sale is

$A$ shopkeeper buys a toy at $Rs. 100$ and sells it at $Rs. 125$. Another shopkeeper buys the same toy at $Rs. 125$ but sells it at $Rs. 100$. What are the respective profit and loss percentages for the two shopkeepers?