Examples of equations for practice for 13 year olds - page 29 of 96
Number of problems found: 1913
- Extraordinary 67044
The employee received an extraordinary reward of 320 euros, 8% of his monthly salary in September. What is his monthly salary? - Determine 65384
We divide the number 210 into two summands so that one summand is 30 less than three times the other. Determine the larger of the summands. - Collected 64494
A group of scouts works in the woods. A third of them cleaned the stream. A quarter collected timber, and the remaining ten planted trees. How many scouts were on the brigade? - Attended 47663
Three times more boys than girls attended the student meeting. When 8 boys and 8 girls left early, five times more boys than girls stayed at the meeting. How many boys and how many girls were at the game? - Pilgrimage 41951
Pavel spent CZK 315 on the pilgrimage in three days, doubling his spending every following day. How much CZK did he pay on the first day? - Five-twelfths 39871
Five-twelfths of the students in the class learn English, a third learn German, a sixth learn French, and two students learn Russian. How many students are in the class, and how many languages are they learning? - Students 39121
N boys go to class. There are 13 more girls. Today 4 girls and five boys are missing. How many students in this class are in school today? - Solution 38451
Prepare 2 liters (kg) of a 3% salt solution in water. - Magnification 21383
When we increased the circle's radius by 2 cm, its area increased by 40π cm². Determine the radius of the circle before magnification. - Discount and prices
After a 29% discount, the new product price was € 426. What was the original price of the product? - Accommodated 8189
One hundred sixty-nine pupils were accommodated in 45 rooms at the outdoor school. Some were triple, and some quadruple, and all were fully occupied. How many were triple and quadruple rooms there? - Granddaughter's 7475
Grandma is five times older than her granddaughter today. 2 years ago, the grandmother was six years younger than six times her granddaughter's age. How old is Grandma today? - Increased 7062
I think the number. I will increase it by 6, then decrease the increased number by 12, and then multiply the result by the number -2. I divide the product by the number -8 and get the number -4. What number do I think? - Younger 7012
Lena is seven years older than Monica. If both Lena and Monica were four years younger, she would be twice as old as Monica. How old is Lena? - Calculate 6149
Find the area and perimeter of a square whose diagonal is 10 cm. - Birthday 6092
Soňa and her aunt have a birthday, and her aunt is five times older than Soňa. When Soňa is a year younger than her aunt, her aunt will be eighty years old. How old is Sona now? - Younger 4782
The son, mother, and father are 96 years old. A mother is 23 years older than her son and five years younger than his father. How old is a son? - Difference 3870
The difference between the two numbers is 16. They are natural numbers. The first number is 17 times larger than the second number. Identify both of these numbers. - Performance 3510
They sold 120 tickets at the children's performance for CZK 3,100. The children cost CZK 20, and the adults cost CZK 40. How many children's tickets have been sold? - Together 3281
My father said: I am 40 years old. One son is 16 years old, and the other is three years old. How many years will my sons be together as I am now?
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