Percentages + natural numbers - practice problems
Number of problems found: 60
- Divisibility
Determine all divisors of number 90. - Increase 82151
Increase 380 by 28% - What 37901
What is more, 14% of 27 or 15% of 28? - Students 48473
There are 30 students in the class. 70% of them have one sibling. How many students have one sibling? - Capacity 82231
There were 60 people in the stadium, which was 30% of capacity. How many people can fit in the stadium? - Divisible 68644
List all divisible numbers by six and seven that are greater than 79 and less than 91. - Big number
Dagmar typed numbers on the computer (without spaces) 45678910111213141516... Which number did she write in the third place? - Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number. - Children
Of the estimated 2 billion children living in the developing world, approximately 400 million do not have access to safe drinking water. Approximately what percentage of children in developing countries do not have safe water to drink? - Production plan
The annual production plan was exceeded by 2%. If production were higher by 300 products, the plan would be exceeded by 5%. What was the annual production plan? - Already 82989
The book has 1200 pages, of which Róza has already read 60%. How many pages has Rose not read so far? - Students 45261
There are 200 pupils in the class, 40% of whom cannot swim. How many students can swim? - Fish population
The number of fish in a lake decreased by 10% during one year. Last year there were 500 fish in the lake. What is the fish population this year? - The number 72
The number 72 increased by 25%. By how much % will you have to reduce the number you created to get the number 72 again? - Participate 7616
Two hundred fifty students were to participate in the discussion on the dangers of drugs. 8% of them did not participate in the debate. How many students were in the discussion? - Successful 6077
The natural history test contained 21 questions. The teacher evaluated each question by two points. Milan wrote a test for 39 points. At what percentage was Milan successful? - Unknown number 10
The number first increased by 30%, then by 1/5. What percentage we've increased the original number? - Yesterday 79344
Petr played Minecraft for 2 hours yesterday. Pavel played 10% longer. How many minutes did Pavel play? - Three-digit 69114
How many three-digit numbers have a digit sum of 6? Write the ratio of the number of created even and odd numbers and adjust it to the basic form. - Employees 63594
4020 employees work in the car plant. 35% of the work by bus, 40% by car, and the rest by bike. How many employees go to work by bike?
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