Percentages practice problems - page 75 of 99
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: 1978
- Interest rate
At what annual interest rate would we get an interest of 60 euros on a deposit of € 6,000 for three months? - Percentage 3971
Students have classes from 8:00 to 12:30. One 15-minute break and three 10-minute breaks between lessons. What percentage of teaching is breaking? - Percents
How many percents is 900 greater than the number 750? - Above 100%
Find 340 percent of the numbers 45 and 55.
- Percents of percentages
Calculate: (a) 5% of 25% of 85 b) 4% of 20% of 1500 c) 83% of 20% of 25 d) 0.3% of 70% of 90 - Increase 3946
Increase number 160 by: a) 25% b) 30% c) 150% - Unknown 3922
16% of the unknown number equals the square root of the number 25. Find this unknown number. - Area and percents
Find what percentage is a smaller cube surface when the wall's surface area decreases by 25%. - Cuboid enlargement
By how many percent increases the volume of the cuboid if every dimension increases by 30%?
- Cacao
Cacao contains 34% filling. How many grams of fill are in 130 g cacao? - Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number. - Percentage 3892
The bar contains 81g of coconut per 200g. What percentage of coconut does the bar have? - Chocolate 3886
Chocolate has 86% cocoa. Determine how many grams of cocoa are in 165-gram chocolate. - Determine 3880
Determine how much equals 16% of a) 32, b) 44, c) 34, d) 25
- Percentage 3872
Milos had to do 20 clicks. However, he only made 16. What percentage did he miss in completing the task? - Raspberries
Dano had 20 raspberries. John had 90% more raspberries than Dano. Find how many raspberries have Dano and Juraj together. - Cancer
Of the 80 people, 50 people were ill with cancer. What percentage of people isn't ill? - Kerosine and petrol
If 4 liters of petrol containing 15% kerosine are added to another 7 liters of petrol containing 10% kerosine, what percentage of the petrol is kerosine? - Determine 3857
Determine what 305% of number 98 is.
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