Ratio + percentages - practice problems
Number of problems found: 118
- Percentage 10
Fifty-two shorts and missed 13. Calculate percentage - Inflation
What is better for people (employees)? ... - Bureaucracy
23 people attended the office. 9 of them completed the questionnaire. What is the percentage of all people? - Increased 17773
Salaries increased by 4:3. How much did wages increase? - Six percents
6% of the base is 21. How much is 28% of this base? - Efficiency
A certain device consumes 28 kW and delivers 14 kW. Find its efficiency. - Cone in cube
The cube is an inscribed cone. Determine the ratio of the volume of cone and cube. Please write the ratio as a decimal number and as a percentage. - Percentage 4138
What percentage does the white color on the Czech flag occupy? - Cake ingredients
Does the yeast cake contain milk, yeast, sugar, and flour in a ratio of 20:4:1:15. What percentage of flour is in yeast? - Cone in cylinder
The cylinder is an inscribed cone. Find the ratio of the volume of the cone and cylinder. Please write the ratio as a decimal number and as a percentage. - Percentage 23501
In 7A class, the number of boys to girls is a ratio of 2:3. What percentage in the class are girls? - Determine 5188
If we increase the unknown number by 4%, we get 780. Determine the unknown number. - Consumption 8079
The survey reduced hot water consumption by a ratio of 4:5. By what percentage has household water consumption decreased? - Black to brown ratio
In a box, there are 20 pairs of socks, of which 65% are black and the rest are brown. What's the ratio of black and brown socks? - Altitude difference
What is a climb per mille of the hill long 4 km and the altitude difference is 6 meters? - Potatoes
Potatoes contain 77% starch. How many potatoes need to obtain 61.2 kg of starch? - Pipeline
How much percent has changed (reduced) the pipe cross-section area if the circular shape changed to square with the same perimeter? - Red diplomas
The numbers of students with honors in 2013 and 2014 are in a ratio of 40:49. How big is the year-on-year percentage increase? - Inscribed sphere
How much % of the volume of the cube whose edge is 6 meters long is a volume of a sphere inscribed in that cube? - Salt solution
Calculate the weight of a 50% salt solution we prepare from 120 g of salt.
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