Maths practice for 12-year-olds - page 295 of 308
Number of problems found: 6153
- Diplomas
Suzanne helped write out diplomas. Issuance first took 3 minutes, each next 2.3 minutes. How much time will it take to write out n=16 diplomas (including the first) at this pace? - Water tank
The water tank-shaped cuboid has a width of 2.3 m and a length twice as large. If water flows into 19 liters of water per second during 52 minutes, how high will it reach? - Car range
Calculate the maximum range of cars, if you can spend 5 euros, the diesel price is 1.6 Eur/l, and car consumption is 5.4 l/100 km. - Washing machine
The price of the washing machine decreased by 21% and then by 55 € due to small sales. After two price decreases, cost € 343. How much did it initially cost?
- Cups
We have three cups. In the cups, we had fluid and boredom we started to shed. 1 We shed one-third of the fluid from the second glass into the first and third. 2 Then, we shed one-quarter cup of liquid from the first to the second and to the third. 3 Then, - President
The country has 5.11 million citizens which 2.12 million are voters. Turnout was 34.4%. President R. F. was elected from 20 candidates for president and won with 38% of votes. Calculate what percentage of the country's citizens voted R.F. as president. - Rhombus
Calculate the length of the diagonal AC of the rhombus ABCD if its perimeter is 84 dm and the other diagonal BD has length 20 dm. - Garden
The rectangular garden is 72 m long and 25 m wide. Calculate by how much m² its area will be reduced if it is surrounded by an ornamental fence 50 cm wide. - Driving school
Driving final exam involving 10 attendants. The exam consists of three parts. 2 fails the test (quiz), and 6 students fail on car skills test on the playground (slalom between the cone). The practical part of the test - driving in town in real traffic - a
- Eggs
Mother bought from neighbors 39 domestic eggs. Her neighbor got back €4.54 from €10. How many euros get back from 20 banknote if she buys 94 eggs from a neighbor? - Waiting room
In the waiting room are people and flies. Together, they have 21 heads and 102 legs (fly has six legs). How many people and flies are in the waiting room? - Certificate
There are 31 students in a class. The mathematics score wasn't worse than 2. The average score in mathematics was 2. How many students have a score of one, and how many have a score of 2? - Unions
Calculate how much money per year would go to the treasury of unions if 976 thousand employees join unions with an average net salary of 587 euros and if union membership costs 1% of the net monthly salary. - Cyclists
The cyclist who rides at an average speed 20 km/h travels a trip distance 13 min before the cyclist who rides at an average speed 15 km/h. What is the length of this cyclist trip(distance in km)?
- Division
Divide by the number 0.2 is the same as multiplying by what number? - Lorry
The lorry was loaded with 30 boxes of 24 kg. How many boxes with weight 48 kg can be loaded if the total load must be the same? - Chocholate
The table of chocolate is divided into squares on its surface. Lengthwise has 15 squares and widthwise 19 squares. We must chocolate broke into individual squares. How many times have we broken it to get only individual squares? It is not permitted to bre - XY triangle
Determine the area of a triangle given by line 2x-4y+47=0 and coordinate axes x and y. - Sawdust
How many cubic centimeters of wood sawdust are created by cutting the tree trunk with a diameter of 66 cm and when the gap width is 5 mm?
The fire tank is cuboid in shape, with a rectangular floor measuring 13.3 m × 14.7 m. The water depth is 1.9 m. Water was pumped from the tank into barrels with a capacity of 5 hl. How many barrels would have been used if the water level in the tankDo you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
