Maths practice for 12-year-olds - page 239 of 355
Number of problems found: 7082
- Sponsor
The children of the tennis school received 64 white and 48 yellow balls from the sponsor. When asked about how many balls they could take, they answered: "You have so many that none of you will have more than ten balls, and all will have the same number o - Orienteering teams
Twenty-six girls and 39 boys took part in the orienteering race. Create as many of the same teams as possible so that no competitor is left. How many boys and how many girls are on the team? - Combined Weight Puzzle
If Adam and Boris weigh a total of 75 kg, Boris and Cyril weigh a total of 83 kilograms, and Cyril and Dano weigh a total of 92 kg, how many kilograms do Adam and Dano weigh together? - Cook Island map
On the Cook Island map, the cycling trail measures 0.025 m. A cyclist moving at a constant speed of 15 km/h will cover the entire trail in 2/3 hours. Determine the scale of the Cook Island map. - It is 2
It is 90 feet from home plate to the first base on a baseball diamond. What is the area of the baseball diamond in square yards? - Parallelogram Interior Angles
Find the interior angles of the parallelogram if you know that one of them is 50 degrees larger than the other. - Map Scale Aerial Distance
On the map, at a scale of 1:1100000, the aerial distance between Martin and Brezno measures 5.5 cm. Calculate the aerial distance covered by the helicopter when it flies from Martin to Brezno and back. - Fabric Suits Length Meters
The cotton fabric in the bale in the store measures 101/5 meters. How many 10/7 meter suits can we sew from the whole bale of fabric? - Bicycle Gear Options
Peter got a new bike for his birthday. His bike was equipped with many gears. How many gear options does Peter have if you have three wheels at the front and eight wheels at the back? List them all - Cuboid and cube
A block with edges of lengths of 10 cm and 8 cm has the same volume as a cube with an edge of the length of 1 dm. Calculate the third dimension of the block. Compare the ratio of the surfaces of both bodies. - Class children count How many children are in a class where one-eighth is three children?
- Charity Contributions Same Amount
Vojta and Martin have been contributing to charity since the same day. Vojta contributes 110 CZK every week. Martin contributes 85 CZK every week, and in addition, he made a one-off contribution of 300 CZK at the beginning. Calculate how many weeks Vojta - Two Inlets Fill Tank
The first inflow fills the tank in 4 hours and the second tributary in 6 hours. How long will it take to fill both tributaries simultaneously, but the species will start an hour later? - Pexeso
The drawing paper has dimensions of 60cm and 840mm. Pupils have to divide it into squares to make a pexeso. What dimension must squares have if their side is larger than 3cm and less than 10cm? - Dividing Lines into Parts
Divide three lines with lengths of 12 cm, 24 cm, and 64 cm into equally long and, at the same time, the most extended possible parts. How long will the individual parts be, and how many will there be? - Fruit harvest
Five workers harvested fruit in 150 hours. How many temporary workers have to work to harvest fruit in 250 hours? - Velocity calculation Calculate the unknown velocity x if: 24 km/h. ... . .. .20min x km/h. ... . .. .12min
- Workshop production ratio
They produced a total of 7,290 light bulbs in three workshops. How much did each workshop produce when we write their production in the ratio of 2:3:4 - Copy center profit They print 1,300 copies at the copy center. One copy costs 10 cents. The cost of printing one copy is 3 cents. The saleswoman receives €25 per day. How much does a copy center make per day?
- Gasoline Tank Volume Positions
The closed petrol tank is a cuboid with dimensions of 80cm, 30cm, and 20cm. The petrol level reaches 6cm below the upper edge of the tank. Determine the amount of gasoline in the tank in liters for all possible, stable positions of the tank.
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