Equations practice problems - page 178 of 241
Number of problems found: 4815
- One percent
One percent of all the lights in the city are LED, and the remaining 99% are conventional. Other types are not there. John counted them honestly, but he had counted only conventional. After a good dinner, he registered numbers, and he gave notice that fro - Cakes Z8-I-5
Mom brought ten cakes of three types: coconut was less than Meringue Cookies, and most were caramel cubes. John chose two different kinds of cakes. Stephan did the same, and Margerith left only the same type of cake. How many coconuts, Meringue Cookies an - Ice cream flavors
Half of the class likes vanilla ice cream, half of the rest like strawberry, and the other six like hazelnut. How many children were there in the class? - Number puzzle
I mean the number. If I reduce it by 0.5, then add 1/3, reduce the sum by 2/5, and increase the difference by 1/6, I get 0.3. - Rectangle pool
Find the dimensions of an open pool with a square bottom and a capacity of 32 m³ that can have painted/bricked walls with the least amount of material. - Chocolate cost
How much does whole chocolate cost when 2/3 costs 24 cents? - Equation solving
Solve the equation and perform the test: 1- (x-x/7-1/7) = 7-9x/2 +5/2 - Vineyard
While visiting a winery, the family bought a total of 32 liters of wine in bottles of 0.7 liters and 1 liter. The ratio of the number of larger bottles to smaller bottles is 9:10. The price of a smaller bottle of wine was 120 CZK and a larger bottle was 1 - Cuboid - ratios
The sizes of the edges of the cuboid are in the ratio of 2:3:5. The smallest wall has an area of 54 cm². Calculate the surface area and volume of this cuboid. - Equation solving
Solve the equation and perform the test: 2 (4x + 3) - 2 = 6 - 5 (1 - x) - Variation equation
Solve combinatorics equation: V(2, x+8)=72 V(2,x+8) is variations, second class, from x+8 items. - Student scores
Dorka had a total of 22 marks in her student book. She had three times less than three ones. She had only two doubles. How many units did Dorka have in the student's book, and how many threes? - Flu epidemic
During the flu epidemic, 10% of the school's students fell ill on Monday, another 39 on Tuesday, and one-eighth of all the school's students joined them on Wednesday. During these three days, one-third of all school pupils fell ill. How many students does - Rhombus perimeter
Calculate the circumference of a rhombus, one side of which is 6 cm long, and the height of this side is 2 cm long. The height on the other side is 4 cm long. - Salt solution
How many grams of table salt and water do we weigh to prepare 500 g of a 15% solution? - Unknown number
19% of the unknown number is 12, less than 23% of the same number. Specify an unknown number. - Hello adding
Fill letters instead of digits so the indicated sum (equal letters represent equal digits). What number is hidden under the letter J? A A H A H O A H O J -------------------------- 4 3 2 1 - Variation equation
Solve the equation: V (2, x + 2) = 90 - Brother ages
Jan is five years older than Pavel. Jan's age is 7/6 Dusan's age. All the brothers are 195 years old together. How old is Jan? - Rectangle diagonals
It is given a rectangle with an area of 24 cm² and a circumference of 20 cm. The length of one side is 2 cm larger than the length of the second side. Calculate the length of the diagonal. Length and width are yet expressed in natural numbers.
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