Examples for secondary school students - page 124 of 237

Number of problems found: 4730

Rectangle
There is a rectangle with a length of 12 cm and a diagonal 8 cm longer than the width. Calculate the area of a rectangle.
Hens rabbits puzzle
Hens and rabbits, 22 heads and 62 feet, run around the garden. How many?
Cone Volume Surface Height
In the rotating cone = 100π S rotating cone = 90π v =? r =?
School Students Girls Percentage
There are 350 boys in the school, 56% of all schoolchildren. How many students are there at school, and how many girls are there?
A pizza
A pizza place offers 14 different toppings. How many different three-topping pizzas can you order?
600 pencils
Six hundred pencils we want to be divided into three groups. The biggest groups have ten pens more than the smallest. How many ways can this be done?
Triangular pyramid
What is the volume of a regular triangular pyramid with a side 3 cm long?
Family
Ninety-four boys are born per 100 girls. Determine the probability that there are two boys in a randomly selected family with three children.
Bicycle race route
The bicycle race route rises for two-fifths of its length, descends for three-eighths, and is flat for the rest. If the length of the uphill section is 4 km longer than the length of the downhill section, how long is the race route? a) 160 km b) 100 km c)
Isosceles Trapezoid Sides Angle
ABCD isosceles trapezoid. A = 6 cm, e = 7 cm and delta angle = 105 °. Calculate the remaining pages.
Boys and girls
There are 11 boys and 18 girls in the classroom. Three pupils will answer. What is the probability that two boys will be among them?
Two parallel chords
The two parallel chords of the circle have the same length of 6 cm and are 8 cm apart. Calculate the radius of the circle.
Lake 2
Three brothers were at a cottage on the shore of a circular lake. Every morning Andrej ran around the lake. Simultaneously with him, Braňo jumped into the water in front of the cottage and swam so that he was always midway between the running Andrej and t
Pocket money savings
Zuzana receives pocket money from her parents. In October and November, she managed to save 32 euros. The ratio of cash held in October and November is 6:2. How much did she save in October and November?
Arithmetic sequence calculation
The arithmetic sequence is given: Sn = 222, n = 12, a1 = 2. Determine d, a12.
Parallelogram
The sides of the parallelogram are 8 cm and 6 cm long, and the diagonals' angle is 60°. What is its area?
Block edge dimensions
How many blocks have integer dimensions of the edges if the surface is 48 m²?
Pyramid Roof Sheet Metal
The roof of the recreation cottage has the shape of a regular four-sided pyramid with a height of 8 m and a base edge of 4 m. How much ℅ went to folds and joints, and 75.9 square meters of sheet metal were used to cover the roof?
School Excursion Percentage
The school director announced that of the 250 children attending the school, every fifth student has the opportunity to participate in the excursion. Then 18% of boys and 23% of girls went on an excursion. Determine how many boys and how many girls attend
Three numbers
We have three different non-zero digits. We will create all three-digit numbers from them and use all three figures in each. We add all the made numbers and get the sum of 1554. What were the numbers?

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