Percentages practice problems - page 42 of 114
Number of problems found: 2276
- Rectangular land
Due to the new road, the longer dimension of the rectangular plot had to be shortened by 4 percent, and the shorter dimension shrunk by 10 percent. Thus, the area of the land has decreased by how much percent? - 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. - The conical roof
The conical roof above the warehouse has a diameter of the lower part (base) d = 11.2 m and a height v = 3.3 m. How many rectangular steel plates with dimensions of 1.4 m and 0.9 m were needed to produce this roof if the seams and waste required an increa - Yogurt plan exceeded
The dairy produced 2,800 pieces of yogurt instead of 2000. By what percentage did it exceed the plan? - Student sibling percentage
There are 30 students in the class. 70% of them have one sibling. How many students have one sibling? - Car repair parts
Car repairs cost CZK 8,400. The owner paid 36% for labour and the rest for new parts. How much did he pay for the new parts? - Book price
The book was increased by CZK 20% from CZK 350. The bookseller subsequently reduced it by 15% as it did not go on sale. What was its final price? - Roof aluminum boards To cover the pyramidal roof of the house, Mr. Drobný bought aluminum boards at 210 CZK per 1 m². How much CZK crowns did he pay for them if their consumption increased by 10% due to overlapping edges?
- Safe wall percentage
The safe is 100 cm high, 80 cm wide, and 60 cm deep. Its internal space has a volume of 168 liters. What percentage of the total volume of the safe is occupied by the walls of the safe? - Arrange
Arrange the following in descending order: 0.32, 2on5, 27%, 1 on 3 - Bracelet wire length
Rachel wants to model a round bracelet with a diameter of 8 cm from copper wire. About how much wire does he need to make it if he needs to add 15% of its length to the eyelets? (π = 3.14) - Rectangle area
The rectangle's length is 35% larger than its width, and the circumference is 188 cm. Calculate its area. - Forest land
The land area of 320 hectares has 30% wood. How many hectares of land are not afforested? - Shooting target hits
Members of the shooting circle hit the target 57 times during the shooting, which was 38% of the total number of shots. How many times did they fire in total? - Washing machine
The washing machine cost € 325. In sales-off, it became cheaper by 10% and another 10%. Find the last price of the washing machine. - Library reader fee
Forty percent of all library readers have already paid the annual reader fee, so the remaining 264 have to pay the fee. How many readers does the library have? - Percentage base finding
From which number 70% is 30? - 25 pupils
Twenty-five pupils attend the school dance group, which is 5 percent of all pupils. The judo class is attended by 20 pupils, a quarter of whom also attend a dance group. How many schoolchildren do not go to a dance or judo group? - Marble sharing ratio
Four boys shared 100 marbles. The second received 20% more than the first, the third received 20 more bullets than the first, and the fourth received 0.8 times more bullets than the first. How many marbles did each boy get? - Theater ticket discount
The ticket to the theater was discounted by 10%, and after the discount, it cost 306 CZK. What was the original price?
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