Percentages practice problems - page 65 of 111
Number of problems found: 2219
- Family
Ninety-four boys are born per 100 girls. Determine the probability that there are two boys in a randomly selected family with three children. - Pyramid Roof Sheet Metal
The roof of the recreation cottage has the shape of a regular four-sided pyramid with a height of 8m and a base edge of 4m. How much ℅ went to folds and joints, and 75.9 square meters of sheet metal were used to cover the roof? - School Excursion Percentage
The school director announced that of the 250 children attending the school, every fifth student has the opportunity to participate in the excursion. Then 18% of boys and 23% of girls went on an excursion. Determine how many boys and how many girls attend - Cake Profit Percentage
The purchase price of the cake is 11.5. The selling price is 16.5. What is the yield in% when selling 950 and 1200 pieces? - Selling percentage return
The purchase price is 11.50 per piece. The selling price is 14.50. What is the percentage return when selling 950 pieces and 1200 pieces? - Price Offer Percentage Higher
I am selling 150 pieces for the amount of 2350 CZK. The customer is offered the same number of pieces for 1700 CZK. By what percentage is my offer higher? - Ice layer
A 2 cm thick layer of ice formed in the circular water tank. What part of the tank's water (answer in percent) froze if the tank has a diameter of 20 m and a depth of 1.5 m? - Society
A senior citizens' association has a total of three hobby clubs - chess, hiking, and cooking. Chess - number of members 15, cooking 45, hiking: the share of club members from all clubs: 60%. Number of members: women 84. Each member of the association atte - Walking
Of the 450 students at the school, 432 walks to school. What percentage is this? - Company and employees
There are 370 employees in the company - women are 15% less than men. How many men work in the company? - Cyclist Three Day Route
The cyclist drives a 240 km long route in 3 days. On the first day, go half of the entire route. The second day passed two-fifths of the rest of the way. What percentage of the cyclist completed the whole way on the third day? - Orders Exceeded Expectations The company expected to win 120 orders but eventually managed to win 180 orders. By what percentage did the company exceed its expectations?
- Lemonade
In January, 2 liters of lemonade were sold for CZK 24, while in February, 2.5 liters of lemonade were sold at the same price. How much percent was 1 liter of lemonade cheaper in February than in January? - Diluting Alcohol Solution
I have 35% alcohol and want to make 1 liter of 1% solution. How much ml of alcohol should I put on the bottom of a one-liter container and pour water over it? - Carrot seed
Carrot seed germination is 85%, and the weight of 1000 carrots seeds is 2.4g. How many seeds are likely to germinate if we sow 8g of seeds? - Unknown number percentage
19% of the unknown number is 12, less than 23% of the same number. Specify an unknown number. - Tickets
One thousand two hundred sixty tickets sold. On the first day, 80% was sold, and on the second day, it was sold. How many tickets were sold first, and how much the next day? - Tower Sheet Metal Coverage
The tower has the shape of a regular four-sided pyramid with a base edge of 0.8 m. The height of the tower is 1.2 meters. How many square meters of sheet metal is needed for coverage if we count eight percent for joints and overlap? - Pyramid Tent Canvas Area
The pyramid-shaped tent has a square base with a side size of 2.2m and a height of 1.8m. How many square meters of tent canvas are needed to make it if we count an extra five percent for the foundation? - The observatory
The dome of the hemisphere-shaped observatory is 5.4 meters high. How many square meters of sheet metal need to be covered to cover it, and must we add 15 percent to the minimum amount due to joints and waste?
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