QA : Percentage [230625]

The population of a city increases by 10% in the first year, decreases by 20% in the second year, and increases by 25% in the third year. What is the net percentage change?

A shopkeeper marks his goods 80% above cost. He gives a discount of 30% on the marked price. What is his profit or loss percentage?

A candidate scores 20% in QA, 40% in VARC, and 60% in DILR. The maximum marks in these sections are in the ratio 2:3:5. What is his overall percentage?

In a class of 60 students, 40% are girls. Average score of girls is 80% and boys is 70%. What is the average score of the class?

A man spends 70% of his income. Income increases by 20%, and expenditure rises by 10%. By what percentage do his savings increase?

A bottle contains milk and water in the ratio 3:2. 20% of the mixture is removed and replaced with water. What is the final percentage of water in the mixture?

A company’s revenue increased by 20% from 2020 to 2021, then by 25% in 2022. Expenses grew by 30% over two years. If 2022 profit is Rs. 12 lakh and revenue in 2020 was Rs. 100 lakh, what was the expense in 2020?

A number is increased by 40% and then decreased by 30%. The final value is 182. What was the original number?

75% passed in English, 70% in Maths, and 55% passed in both. What percentage of students failed in at least one subject?

An alloy contains 60% copper. 20 kg of it is replaced with another alloy containing 90% copper. The new concentration becomes 66%. What is the original quantity of the alloy?

If the price of an item increases by 25% and the consumer reduces consumption such that the total expense increases only by 5%, what is the percentage decrease in consumption?

An item is marked 100% above cost price. If a discount of 20% is given, what is the profit percentage?

A student scores in the ratio 5:6:8 in three subjects, each of 100 marks. If his overall percentage is 70%, what are his marks in VARC?

In an election, 10% of votes are declared invalid. The winner gets 60% of valid votes and wins by 3000 votes. What was the total number of votes?

In a company, 30% of employees are women. 40% of women and 60% of men are team leads. What is the percentage of team leads in the company?

A car depreciates at 20% annually. Its present value is Rs. 3,20,000. What was its value two years ago?

Rs. 1,00,000 is invested at 10% compound interest. After the first year, 30% of the total is withdrawn. What is the final value after 2 years?

A student needs to score 40% in each section to qualify. He scores 60% in QA, 35% in VARC, and 45% in DILR. Each section is of 100 marks. By how many marks did he miss qualifying?

A mixture contains 40% alcohol. How much water should be added to 60 L of the mixture so that the alcohol becomes 30%?

80% students passed Quant, 70% passed LRDI, and 60% passed both. What percentage of students failed in both?