Percentages + simple proportion - practice problems
Number of problems found: 8
- Feed to hay
How many tons of water do we have to dehydrate from 8 tons of feed, if the original moisture is 54 percent, to get hay with a moisture content of 15 percent? Round to two decimal places.
- 15% of
15% of the revenue from sales was CZK 24,000 and it had to be written off as sales tax. What was the net profit on sales?
- 14 percent
If 14 percent is 56, what is the base?
- Six percents
6% of the base is 21. How much is 28% of this base?
Sixty percent of one-fifteen of the total is equal to thirty. What are two percent of the total?
For the first week of material collection events are picked up at the school 850 kg of paper and 305 kg of rags which represented 55% of total collection for 14 days. How many kilograms of secondary raw materials were handed over totally?
- Drying apples
By drying, apples lose 85% of their weight. How many kgs of dried apples do we get from 820 kilograms of fresh?
- Cross-country competition
Cross-country competition was attended by 76% of pupils of class 9.B. Class consis of 16 boys, two of whom did not run and 4 girls did not run. How many girls go to class 9.B?
Our percentage calculator will help you quickly calculate various typical tasks with percentages. Percentages practice problems. Simple proportion - practice problems.