Percentages practice problems - page 96 of 111
Number of problems found: 2203
- Bricks
Openings in perforated bricks occupy 10%, and brick has dimensions of 30 cm, 15 cm, and 7.5 cm. Calculate a) the weight of a perforated brick if you know that the density of the full brick material is p = 1800 kg/m³ (1.8 kg/dm³) b) the number of perforate - Nectar
Nectar collected by bees contains 70% water. The nectar of the same process produces honey which has 19% water. How many kilograms of nectar do bees need to collect to make 1 kg of honey? - Car value
The car loses value by 15% every year. Determine a time (in years) when its price will halve. - Alcohol mixing
How much 55% alcohol must we pour into 1500 g 80% alcohol to form a 60% alcohol? How much is 60% alcohol created?
- Spirit From 55% and 80% spirit, we would like to produce 0.2 kg of 60% spirit. How many of them must we use in a solution?
- Container with water
The weight of a container with water is 2.48 kg. Suppose the cast is 75% water, and the container with water weighs 0.98 kg. Determine the weight of the empty container. How much water was originally in the container? - Kilograms 2099
The truck crane has a load capacity of 4 tons. How many kilograms can we overload it if the maximum limit of 115 percent load capacity is allowed? - Sales off 2
The computer monitor sold for 8400 CZK in March. In April, the dealer price decreased by 798 CZK. Calculate the percentage by which the retailer reduced the price. - Vinegar
What percentage of vinegar do we get if we mix 1 dm³ of eight percent vinegar with 1.5 dm³ of six percent vinegar?
- Concentration
We try 0.5 liters of 8% vinegar dilute to a concentration of 20 hundredths % of vinegar. How many liters of water must we add? - Water tank 2
The water tank cuboid is 12 meters long and 6.5 meters wide, and 1.2 meters high. How many hectoliters are in the tank when it is filled to 81%? - Principal and interest
Peter put € 270 principal into the bank, and at the end of the year, the account was € 282. To what annual interest rate did Peter deposit money in the bank? - Sales off
Goods are worth € 70, and the price of goods fell by two weeks in a row by 10%. How much percent decreased overall? - Great Wall of China
The Great Wall of China is 8880 km long. Historically valuable, however, is only 30% of its length. What amount of insurance pays the People's Republic of China a month for this monument if the insurance company charges $ 10 per year per kilometer of hist
- Railway
The railway line climbs 8 permille between points A and B, whose horizontal distance is 1.5 km. It climbs 14 permille between points B and C, which have a horizontal distance of 900 m. Calculate the differences in altitudes between points A and C. - Basketball
Peter and Franta threw to the basket. Each had 20 attempts. Peter scored thirteen and twelve Franta. Give them a percentage of success. - Percent chaining
Calculate 20% from 70% from 80 km - Resort
In a completely crowded resort, 30% of the Czech Republic quarter visitors were from Slovakia, and the rest, 135, came from Germany. What capacity has the resort had? - Height difference
What height difference is overcome if we pass a road 1 km long with a pitch of 21 per mille?
The sugar factory produced 309.2 tons of sugar in 1 day at 14% sugar content. How many tons of pure beet sugar factory processed in 1 day?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
