Maths practice for 12-year-olds - page 247 of 351
Number of problems found: 7017
- Moldings 5884
The worker bought a new carpet with moldings for the square office. The rails for this office cost CZK 1,500; 15 CZK per 1 m. How many m² does this office, in which six people work? - Change 5882
Change the number 132 in the ratio of 7:3. - Divide 5881
Divide the number 600 by the ratio of 9:10:11 - Anywhere 5880
The bus runs 6 km in 9 minutes. How many minutes will the bus go to a place 42 km away if it doesn't stop along the way? - Scale of the map
The distance between the two cities is actually 30 km, and the map is 6 cm. What is the scale of the map? - Separated 5878
How many cm on a map with a scale of 1:150,000 will two cities be separated when their distance is 30 km? - Steps
Peter walked a distance of 60 m 102 steps. How many steps must he take to walk 150 m? - Measures 5876
How many km does the trip's route actually measure, which measures 28 cm on a map with a scale of 1:75,000? - Calculate 5873
Calculate the surface area and volume of a large granite paving block with an edge length of 10 cm and a small cube with an edge length of 5 cm. Compare the results. - Tickets 5872
Three cinema tickets are 24 € cheaper than seven tickets. How many cinema tickets can we buy if we have € 32? - Calculate 5870
Calculate the volume of the area covered with three rows of 7 tiles. One tile is 30 cm wide and 45 cm high and ends with circular arches at two ends. Enter the result in m². - Flour
Kim needs 3/4 cup of flour to make 12 cookies. How much flour would she need to make 60 cookies? - Together 5863
Bus A will travel its route in 15 minutes, and bus B will travel its way in 25 minutes. They left together for the first time at 5 a.m. When will they meet again at the site? - President's 5862
For the opening ball of the season, the president's wife bought a necklace with a bracelet for 768 euros. How much did the necklace cost, and how much did the bracelet cost if the bracelet was 40% off a) cheaper, b) more expensive than the necklace? - Profit per kilo
The trader sells apples at a profit of 20% per kilogram. Today, he decided to reduce the price of apples by 10%. How much profit does the trader have today? - Applications 5859
2600 pupils applied for admission interviews, which was 130% of the expected number. How many applications were expected? - Isosceles from square
How many isosceles triangles form in a square when we mark all diagonals? - Harvesters 5853
One combine harvester harvests a wheat field in 12 hours, and another combine harvester in 16 hours. How long does the same field harvest the third combine harvester alone if all three harvesters harvest the wheat field in 2 hours? - Difference 5847 I reduced the unknown number by five and multiplied the result difference by three. Finally, I increase the resulting product by six and get the least common multiple of the numbers 3 and 8. Calculate the unknown number.
- Describe 5845
The tower clock has a small hand 1 m long. What path will the tip of the little hand describe in 1 day?
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