Maths practice for 14 year olds - page 101 of 362
Number of problems found: 7228
- Segment center coordinates
The line PQ is defined by points with coordinates P = [−2; 4] and Q = [4; 0]. What are the coordinates of the midpoint S of the line segment PQ? - Fruit
There are a total of 28 pear and apple trees in the orchard, and no other fruit trees. The numbers of pear trees and apple trees are in the ratio 3:4. Which statement is false? A. Apple trees make up 4/7 of the fruit trees. B. There are fewer pear trees t - Tournament sophomore percentage
Forty-eight high school students took part in the chess tournament. The number of first-graders, sophomores, and third-graders is 3:8:5. Calculate what percentage of sophomores participated in the game. - Backpack pocket price
Barbara chose a backpack for school that was three times more expensive than a shoe bag. If the backpack were 30 euros cheaper, it would cost the same as a shoe bag. How many euros did a backpack cost? - Katy ski price
Aunt and uncle bought Katy's skis together. They were 3:2 for the entire price of the skis. Uncle contributed 60 euros. How many euros did Katy's skis cost? - There 20
There are 56,800 kinds of animals. Thirty-five percent of this number live on land. How many kinds of animals live on land? - Triangle area grid
Each square of the net has an area of 25 mm². Calculate the area of the DEF triangle in cm². Express the result as a decimal number to three decimal places. - Four-digit number digits
Please find out how many different four-digit numbers we can create from the digits 3 and 8 so that the two digits three and two digits eight are used in each four-digit number created. - Triangular prism volume
Calculate the volume of a regular triangular prism with a substantial edge length of 8 cm and a prism height of 17 cm. - Jana Petra windows
Jane can wash 20 windows alone in 4 hours. Petra can do the same job in 6 hours. How long will it take them working together? - Bricklayer student wall
A bricklayer can repair a wall by himself in 30 minutes. His students would take an hour. How long will it take them working together? - Interior angles - sum
For the sum s of the interior angles of a polygon, where n is the number of its sides, the relation s=(n−2)⋅180 degrees applies. How many sides does a polygon have if the sum of its interior angles is 900°? - Equation root variable
Which number should be substituted for the variable in the equation: 4x² (7-x) = a-3- (x-2), so that the root of the equation is the number 5? - Chord distance length
The radius of the circle is 5.5 cm. The height is 2.3 cm, which is the chord's distance. How can we calculate the length of the string? - Object collection order
In the computer game, you need to collect 5 objects in the room: a sword, a ring, a picture, a key, and a coin. It depends on the order in which we collect the individual objects. If the order is wrong, we will lose a life. How many are all in order? - Bratislava BA-BB
A truck drove from Bratislava to Banská Bystrica at a speed of 30 km/h. At the same time, a tractor drove at a speed of 40 km/h. The tractor arrived in Banská Bystrica 1 hour and 45 minutes earlier than the truck. What is the distance between the cities? - Milan Sara age
Milo, Sara's husband, is four years older and twice as old as she was 17 years ago. How old are they? - Shampoo display ways
How many ways can an arranger display five different shampoos horizontally next to each other? - Stick shadow angle
The meter stick is located on the meridian plane and deviated from the horizontal plane to the north by an angle of magnitude 70°. Calculate the length of the shadow cast by a meter stick at true noon if the Sun culminates at an angle of 41°03'. - The triangle - sides
The two sides of the triangle have side lengths a = 6 cm and b = 13 cm. Then the following applies to the length of the third side c: (A) 7
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