Examples for secondary school students - page 41 of 212
Number of problems found: 4231
- Interior 39791
For the interior angles of a triangle, the angle β is twice as large, and the angle γ is three times larger than the angle α. Is this triangle right? - Starting 38113
How many ways can we put 19 students in a row when starting a gym? - Arithmetic 36901
The examiner has prepared 20 examples from arithmetic. He wants to choose seven samples for the paper. The order of the examples does not matter. How many different papers can he compile? - Gradually 34921
We gradually measured the values of 3,8,13,10,1,13,10,5,3,9. Calculate how much is the sum of the median and average of this file from the mode of this file. - Primary 32683
A total of 1415 pupils attend the three primary schools. They go to the second school twice as much as to the first, to the third they go 100 less than the second. How many pupils attend the third school? - Diamond-air 27221
Find the cut-off angle for the diamond-air pair. n_d = 2.42 α_m =? The absolute refractive index of light for air n = 1 - Coefficient 21623
In the equation 2x² + bx-9 = 0 there is one root x1 = -3 / 2. Determine the second root and the coefficient b - Equation: 21313
Solve the equation: 5 / (x-4) - 2 / (4x-16) = - 7 - Determine 18223
From the sine theorem, determine the ratio of the sides of a triangle whose angles are 30 °, 60 °, and 90 °. - Delegation 16263
There are 22 girls and nine boys in the class. How many ways can a delegation be created with three girls and one boy? - Number 14713
75% of boys are boys. If four boys came to class, the number of boys would equal the number of girls. How many girls are in the class? - Probability 9771
What is the probability that ten molecules will arrange within the brown motion to be one molecule in the lower half and nine molecules in the upper half in one vessel? - Third-class 8334
If we add one element to set A, the number of third-class variations increases two times. How many elements did the set initially contain? - Great-grandfather 6705
Monika was born on the day his great-grandfather was 90 years old. How old is Monika if the product of their ages is 1000? - Permutations 6450
Seven times the permutations of n elements equal one-eighth of the permutations of n + 2 elements. What is the number of elements? - Percentage 4619
Concert tickets have risen in price from € 18 to € 24. What percentage did they increase in price? - Determine 4104
Determine the value of x in this equation: (0.125^x) · 104 = 5000 - Centimeters 3940
Calculate the solid diagonal of a cube whose surface equals 24 square centimeters. - Determine 3914
Find the quotient and the sixth term of GP if a1 = 420, a1 + a2 = 630. - Determine 3876
Determine the second term and the quotient GP if a3 = 48.6 a1 + a2 = 6
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