Percentages practice problems - page 35 of 100
Percentages are a way to express a number as a fraction of 100. They are often used to express a proportion or rate, such as a percentage of total sales or a percentage increase or decrease in a value. For example, if a product sells 25 out of 100 units, the percentage of units sold is 25%, which can also be written as 0.25 or 25/100.Percentage points, also known as percentage point change or "pp" for short, is the difference between two percentages. It is often used to express the change in a variable over time or between two groups. For example, if a company's profits increased from 10% to 20% over a year, the percentage point change would be 10 percentage points (20% - 10% = 10%).
Number of problems found: 1985
- Percentage 39373
Inside the 10 cm cube, a sphere is placed to touch all the cube's walls. What percentage of the volume of a cube makes up the volume of a sphere? - Year-on-year 39353
The company's turnover for the period 2011-2013 increased by 3.7%. From 2013 to 2019, an average year-on-year decrease in turnover of 5% was recorded. What is the total relative change in turnover from 2013 to 2019? - Alcohol solutions
We have to produce 2 liters of 60% alcohol from 55% and 80%. How many of which ones will we use in the solution? - Earning 2
Rahul earns 5000 Rs, and he saves 500 Rs. What percentage of his earnings does he save?
- How many 9
How much percent volume remains of a sphere if the diameter decrease 3×? - Wholesale vs retail
For books, retail adds 10% of the wholesale price of the goods. If the book costs 4.80 euros wholesale, how much will it cost in retail? - Solution 38451
Prepare 2 liters (kg) of a 3% salt solution in water. - Participants
Of the 48 participants, six women are fewer than men and 24 children less than all adults. Calculate what percentage of all participants on tour are children. - Solution 38411
Prepare 250g of a 30% solution of hydrogen peroxide in water.
- Salicylic 38401
Prepare 600 g of an 8% solution of salicylic acid. - Solution 38391
Prepare 100g of a 15% blue rock solution. - Difference 38253
The blue coat, which costs CZK 1,200, has a price 40% lower than the red coat. What is the price difference between the two coats? - Lions
If eight lions are 40%, how many would 75% be? - Annual interest
A loan of 10 000 euros is to be repaid in annual payments over ten years. Assuming a fixed 10% annual interest rate compounded annually, calculate: (a) the amount of each annual repayment (b) the total interest paid.
- Installment 38011
We borrowed CZK 150,000 at a monthly interest rate of 2%. At the end of each month, interest is added, and we immediately pay an installment of CZK 30,000. How much will we owe in 5 months? - Base of percentages
7% of the base is 35 kg. What is 39% of that base? - Percentage 37941
What percentage is 119 t of 85 t? - Determine 37931
40% of the base is 1200. Determine what the base is. - Increases 37921
Increases number of 250 by 11%
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