Percentages + equation - practice problems - page 10 of 28
Number of problems found: 554
- 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? - Production 23461
The cost of production of a particular product decreased first by 15% and then by 10% of the new amount. After this reduction, it cost CZK 153. What were the original production costs? - Unknown 23401
27% of the unknown number is 12 fewer than 33% of the same number. Find an unknown number. - Tournament 23371
The goalkeeper caught 188 shots during the tournament and achieved a success rate of 94%. How many shots per goal ended up in the net?
- Kilometers 22721
Pupils walked 49 km in three days. The next day they ran 20% more than the first day, and on the third day, they ran 2 km less than the second. How many kilometers have they traveled each day? - Determine 22633
Among all employees of one company, there are a total of 20% men and 80% women. If this company hired 45 new employees, of which 32 were men and 13 were women, exactly 30% of the company's employees would be men. Determine how many employees the company h - Double price reduction
TV price has been reduced twice, first by 15% and later by another 10% of the reduced price. After this double price reduction, Peter sold the TV for 8,874 crowns. What was the original price of the TV? - Savings
The depositor regularly wants to invest the same amount of money in the financial institution at the beginning of the year and wants to save 10,000 euros at the end of the tenth year. What amount should he deposit if the annual interest rate for the annua - Representing 21473
Six 7th graders, representing 24% of all graders, had honors. How many students are in the class?
- Eighty-eight 21113
588 pupils attend the school. There are 10% more girls than boys. How many boys and how many girls go to school? - Individual 20463
There are 59 pupils in the 9th grade. In 9A, there are 15% more pupils than in 9B. In 9C, there are 20% fewer than in 9B. How many pupils are in individual classes? - In the classroom
There are 30 boys and a few girls in the class. In the six months, 28 boys and all girls benefited, which was 95% of all pupils. How many pupils are there in the classroom? - Water tanks
A different amount of water is poured into the three identical vessels. Water fills 30% of its volume in the first vessel, and in the second vessel, 40% of its volume. The third container contains 19 liters of water. If we distributed the water from all t - Accounted 19563
During the fishing of the pond, 19 catfish were caught. They accounted for 4% of all fish caught. How many fish were caught?
- Forty-eight 19513
25% of children did not attend the course because they were ill. Forty-eight children passed the course. How many children were initially supposed to complete the course? - Evaporates 19463
When drying mushrooms, water evaporates 50% of its weight. How many kilograms of mushrooms must we collect to make 5 kg of dried mushrooms? - Solution 19283
How many grams of 80% solution and 55% solution do we need to mix to obtain 100 grams of 60% solution? - Successfully 19213
Of all complaints submitted, 741 were successfully resolved. These represented 95% of all complaints. How many complaints were there? - Mushrooms 18933
When dried, mushrooms lose 80% of their weight. How many fresh mushrooms do we need to get half a kilogram of dried ones?
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