Maths practice for 11-year-olds. - page 108 of 222
Number of problems found: 4433
- Cleaning 24411
Thirty pupils took part in the cleaning of the local stream. Everyone had to work t hours. N pupils worked half an hour longer. How many hours did the students work to clear the stream? - Evaluate expression
Calculate the value of the expression z/3 - 2 z/9 + 1/6, for z = 2 - Central angle
The circle has a diameter of 46 cm. What is the arc length that corresponds to a central angle of 30°? - Drivers Driver Franta and driver Karel are friends. They leave the start-stop at the same time in the afternoon - at 13.30. When will they meet again if Franta goes around his route in 50 minutes and Karel in 40 minutes?
- Rectangular 24321
The rectangular garden on the 1:1000 scale plan is 10 cm by 15 cm. What is the perimeter of the garden? - Cyclist 12
What is the average cycle speed traveling at 20 km in 60 minutes in km/h? - Rectangular 24301
How much will the Veselí family pay for fencing their rectangular garden if the garden is 21 m wide and 25 m long? 1m of mesh costs 4 euros. - Planetarium's 24241
The planetarium's dome is shaped like a hemisphere with a diameter of 17 m. Determine the size of the projection area - Lead ball
What is the weight of a lead ball with a diameter of 3 cm if the density of lead is 11340 kg/m cubic? - Three-sided prism
Find the area of the largest wall of a three-sided prism, with a height of 4 dm and an edge length of 5 cm and 6 cm. - Revolutions 24121
The white wheel has 24 teeth. The black wheel has fewer teeth than the white wheel. Both wheels return to their initial position for the first time after two revolutions of the white wheel. How many teeth does the black wheel have? - Continuously 24061
The Pelikan's account was continuously paid the following amounts: 2,000, 4,500, 6,100, 2,100, 3,000, 1,700, 2,600, 2,000 Find average storage amounts. - Calculate cylinder
There is a cylinder with a base radius of 3 cm and a height of 12 cm. Calculate: a) cylinder surface b) cylinder volume - Triangular 24001
The tent's floor consists of a square with a side of 2.4 m, and the front and back wall is an isosceles triangle with a height of 1.6 m. Calculate the volume of air in the tent in liters. (Laid triangular prism.) - Quadrilateral pyramid
Calculate the volume of a regular quadrilateral pyramid, which has the size of the base edge a = 12 cm and a height of 11 cm. - Quadrilateral 23881
Calculate the height of a regular quadrilateral prism whose base is a rhombus. The edge in the base is 7 cm long, the opposite edges are 5 cm apart, and we also know that the entire body has a volume of 1dm³. - Would 23861
We drove 336 km in 4 hours. How many km would we drive at the same speed in 5 hours? - Waste bin
The cube-shaped potato peel waste bin is 80 cm high. How many liters of waste can we put into it if we know that the dimensions of the base are 40 cm and 50 cm, the basket is already full to exactly half its height, and as soon as the waste reaches the li - Length of the arc What is the arc length of a circle k (S, r=68mm), which belongs to a central angle of 78°?
- Two sides paint
The door is a rectangle with dimensions of 260cm and 170cm. How many cans of paint will be needed to paint this door if one can of paint cover 2m² of the area? We paint the doors on both sides.
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