Podcast
Questions and Answers
If petrol price increases from Rs. 40 to Rs. 60 per litre, what percentage should a person decrease consumption to maintain the same expenditure?
If petrol price increases from Rs. 40 to Rs. 60 per litre, what percentage should a person decrease consumption to maintain the same expenditure?
- 40%
- 33.33% (correct)
- 66.67%
- 45%
If the price of wheat decreases by 4%, how many more kilograms of wheat can be bought with the money that previously bought 48 kg?
If the price of wheat decreases by 4%, how many more kilograms of wheat can be bought with the money that previously bought 48 kg?
- 2 kg more (correct)
- 2 kg less
- 1 kg less
- 1 kg more
If the price of an umbrella decreases by 20% and sales increase by 40%, what is the net effect on the total revenue?
If the price of an umbrella decreases by 20% and sales increase by 40%, what is the net effect on the total revenue?
- 12% increase (correct)
- 15% increase
- 20% decrease
- 12% decrease
Dhivya's salary increased by 50% and then decreased by 20%. What is the net percentage increase in her salary from the original amount?
Dhivya's salary increased by 50% and then decreased by 20%. What is the net percentage increase in her salary from the original amount?
A car driver's income consists of salary and tips. If the tips are 5/4 of the salary, what portion of his total income comes from tips?
A car driver's income consists of salary and tips. If the tips are 5/4 of the salary, what portion of his total income comes from tips?
In a city, the ratio of males to females is 4:7. Children make up 25% of males and 30% of females. If there are 9000 adult males, what is the total population of the city?
In a city, the ratio of males to females is 4:7. Children make up 25% of males and 30% of females. If there are 9000 adult males, what is the total population of the city?
If the price of cooking oil rises from $5 to $6 per bottle, by what percentage must a family reduce its consumption to maintain the same expenditure?
If the price of cooking oil rises from $5 to $6 per bottle, by what percentage must a family reduce its consumption to maintain the same expenditure?
A school had 500 students last year. This year, the number increased by 10%. How many students are there this year?
A school had 500 students last year. This year, the number increased by 10%. How many students are there this year?
If a store offers a 20% discount on an item originally priced at $100, what is the sale price?
If a store offers a 20% discount on an item originally priced at $100, what is the sale price?
What is 50% of 80?
What is 50% of 80?
A book costs $20. If the sales tax is 5%, how much is the sales tax?
A book costs $20. If the sales tax is 5%, how much is the sales tax?
If a worker receives a 10% raise and now earns $22 per hour, what was their previous hourly wage?
If a worker receives a 10% raise and now earns $22 per hour, what was their previous hourly wage?
If 25% of a number is 15, what is the number?
If 25% of a number is 15, what is the number?
A pie is cut into 8 slices. If Sam eats 2 slices, what percentage of the pie did he eat?
A pie is cut into 8 slices. If Sam eats 2 slices, what percentage of the pie did he eat?
A bicycle is on sale for 30% off the original price of $200. What is the sale price?
A bicycle is on sale for 30% off the original price of $200. What is the sale price?
If the cost of sugar decreases by 5%, how much extra sugar can be purchased for $100, if it previously bought 20 kg?
If the cost of sugar decreases by 5%, how much extra sugar can be purchased for $100, if it previously bought 20 kg?
A town's population increased by 20% to 12,000 people. What was the original population?
A town's population increased by 20% to 12,000 people. What was the original population?
A store marks up an item by 25% over its cost. If the store bought the item for $40, what is the selling price?
A store marks up an item by 25% over its cost. If the store bought the item for $40, what is the selling price?
Flashcards
Consumption Decrease Percentage
Consumption Decrease Percentage
The percentage decrease in consumption needed to maintain the same expenditure after a price increase.
Wheat Quantity Increase
Wheat Quantity Increase
The additional quantity of wheat that can be purchased due to a price reduction, given a fixed budget.
Net Effect on Revenue
Net Effect on Revenue
The overall change in revenue considering both a price decrease and a sales increase.
Net Salary Increase
Net Salary Increase
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Tips as Income Portion
Tips as Income Portion
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City Population Calculation
City Population Calculation
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Study Notes
- These notes cover percentage-related problems and ratio-based questions.
Petrol Price Increase
- Initial petrol price: Rs. 40 per liter.
- Increased petrol price: Rs. 60 per liter.
- To maintain the same expenditure, a person must decrease consumption by 33.33%.
Wheat Price Reduction
- Wheat price decreased by 4%.
- With the money sufficient to buy 48 kg of wheat earlier, 2 kg more can now be bought.
Umbrella Sales and Revenue
- Umbrella price decreased by 20%.
- Sales increased by 40% as a result.
- The net effect on the total revenue of the shop is a 12% increase.
Dhivya's Salary Adjustment
- Dhivya's salary increased by 50%, then decreased by 20%.
- Overall, her salary increased by 20% from the original amount.
Car Driver's Income
- A car driver's income includes salary and tips.
- Monthly tips equal 5/4 of the driver's salary.
- The portion of income from tips is 5/9 of the total income.
City Population Calculation
- Male to female ratio in a city is 4:7.
- Children comprise 25% of males and 30% of females.
- With 9000 adult males, the city's total population is 28000.
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