Q1: If the price of an article is increased by 20%, what will be the new price of a $500 article?
Q2: What is 25% of 200?
Q3: If a discount of 10% is given on an article priced at $1200, what will be the selling price?
Q4: A man spends 30% of his salary on rent, 20% on food, and 10% on transportation. If his salary is $5000, how much does he spend on rent?
Q5: A student scores 80% marks in an exam. If the total marks are 500, how many marks did he score?
Q6: What is the percentage increase from 150 to 180?
Q7: A person receives a 15% commission on sales. If he sells goods worth $4000, how much commission does he receive?
Q8: If the cost price of an article is $500 and the profit is 20%, what is the selling price?
Q9: What is 40% of 500?
Q10: If a student gets 75% marks in an exam, and the total marks are 800, how many marks does he get?