Equations practice problems - page 108 of 251
Number of problems found: 5001
- Sibling savings calculation
Two siblings, Eve and Peter, saved a total of 228 CZK. Eve saved three times more than Peter. How much did each of them save? - Mushroom drying calculation
When dried, mushrooms lose 80% of their weight. How many fresh mushrooms do we need to get half a kilogram of dried ones? - Number fifth puzzle
If we add its fifth to the given number, we get 36. What is the number? - Tiles
The tile is square and has a side of 15 cm. What dimensions can a rectangle composed of 90 tiles have so that no tile remains? - Unknown number percentage
The number 290 is 16% larger than the unknown number. What's the unknown number? - Hydrogen peroxide dilution
I have 1 liter of 9% hydrogen peroxide, making it a 3% solution. How much water do I need to add? - Ship meeting equation
2 ships sail simultaneously towards each other from places 2340 m apart. I sail both ships at a constant speed. The first boat travels 56 m per minute, and the second 74 m per minute. Create an equation that corresponds to the assignment of the task if th - Exhibition visitor calculation
During 3 days, 2870 people went to the exhibition. On the second day, 140 more people came to the exhibition than on the first day. On the 3rd day, there were 1.5 times more people at the exhibition than on the second day. How many people visited the exhi - Corridor plastering time
According to the standard, we calculated that two masons would plaster the corridor of the new school building in 54 hours. How long would it take for nine bricklayers to plaster this corridor? - Coal supply duration
With the consumption of 0.4 t of coal per day, the supply lasts for 36 days. How many days will the supply be enough if 16 kg of coal is used less daily? - Currant bush planting
Gardeners planted 16% more currant bushes than initially planned. They planted a total of 145 shrubs. What was the original plan? - Business trip calculation
Thirty-five people took part in the business trip. They paid a total of €246. The journey price for employees was €6 and for a family member, €9. How many employees were on tour? I will also ask for the procedure. - Harvester wheat calculation
A field of wheat can be harvested by 7 combine harvesters in 5 days at full capacity. The weather forecast called for the harvest to be completed in 4 days. How many combines were needed in total? - Class girl calculation
One-fifth of the girls are honored in the class, and the remaining eight girls are doing well. How many girls are in the class? - Number calculation puzzle
A number twice less than y is 12 less than y. Determine the size of the number y. - Gibraltar Strait
The length of the Strait of Gibraltar is 1.5 times the length of the Bering Strait. The total length of both straits is 150 km. Find the length of each waterway. - Triangle branch length
The right triangle has an area of 225 cm². One of its legs is twice the length of the other. Find the lengths of its legs. - Wheat sowing calculation The farmer crossed the daily plan to sow wheat by one-fifth and sow in an 11.4 hectare field. Calculate his daily schedule.
- The tourist
The tourist wanted to walk the route 16 km at a specific time. He, therefore, came out at the necessary constant speed. However, after a 4 km walk, he fell unplanned into the lake, where he almost drowned. It took him 20 minutes to get to the shore and re - Reducing
Reducing the unknown number by 427, we get 65% of its value. What is an unknown number?
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