Examples of equations for practice for 12 year olds - page 20 of 59
Number of problems found: 1180
- Rectangles 22781
A bricklayer has 48 tiles. How many different rectangles will he assemble?
- Job applicants
Job applicants: three-fourths of applicants had experience in a position. The number that did not have prior experience was 36. How many people applied for the job?
- Remained 22741
There were apples on the table. Aleš took a quarter of apples, Bara a third of what remained. Cyril took half of the rest. Emil took the other four apples. How many apples were on the table in total?
- Combined 22681
The farm keeps cows, horses, and sheep. There are 37 cows, which is 25 more than the sheep. There are seven times fewer horses than cows and sheep combined. How many animals do they keep on the farm together?
- Large family
The average age of all family members (children, mother, father, grandmother, grandfather) is 29 years. The average age of parents is 40 years, grandparents 66 years, and all children are five years. How many children are there in this family?
- Company's 22283
Ten painters painted the company building in 20 days. In how many days would six painters paint the company's building?
- A map
A map with a scale of 1:5,000 shows a rectangular field with an area of 18 ha. The length of the field is three times its width. The area of the field on the map is 72 cm square. What is the actual length and width of the field?
- Championships 21683
Before the World Water Polo Championships, it was necessary to fill the pool. The first pump would fill in 12 hours, the second in 15 hours, and if all three pumps were started simultaneously, they would fill the pool in 4 hours. How long would the pool b
- Circumference 21463
The circumference of the rectangle is 40cm. Find the rectangle size if you know the sides are in a 4:1 ratio.
- The temperature 5
The temperature at 4 pm was 53°Fahrenheit. The temperature dropped 3° each hour from 4 pm to 9 pm. Which equation below accurately represents the temperature at 9 pm? .
- Consecutive 21033
The sum of eight consecutive even natural numbers is 1,688. Determine the largest of the numbers.
- A bucket
A bucket has 4 liters of water when it is 2/5 full. How much can it hold?
- Weighs 20983
The stone weighs 5 kg + half a stone. How much does a stone weigh?
- Initially 20653
The employer reduced Mr. Mak's salary by 4:5. If he received € 720 in his account, how much did he initially earn?
- Linear function
Write the following problems using x as the unknown variable, using one of the following forms: x+p=q or px=q. Larry ran seven more miles than Barry in a month; if Larry ran 20 miles, how many did Barry run?
- Interested 20533
About an eighth of the 9th-grade students are interested in studying at the academy, about a sixth at the gymnasium, one quarter at the SOU, one-third at the vocational school, and 3 students at art schools. How many pupils are there in the class?
- Travels 20483
When and where will the two cars that drove at the same time from cities A and B 90 km apart if the car from city A travels at a speed of 75 km/h and the car from city B at a speed of 60 km/h meet?
- Building 20293
Two workers will build the building in 10 hours. How many hours would they have built the building if three more workers had helped them?
- Perimeter 20283
If we increase the length of one pair of opposite sides of the square by 2 cm and the length of the other two sides by 1 cm, we will create a rectangle, the perimeter of which will be 10% larger than the perimeter of the original square. What is the side
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