Equations practice problems - page 135 of 250
Number of problems found: 4997
- Fruit crate weight
The fruit crate is seven times heavier than an empty crate. A full crate weighs 30 kg more than an empty one. How many kg does an empty crate weigh? - White Blue Balls Probability
There are eight white balls and several blue balls in the pocket. The probability of pulling out the white ball is 2/3. How many blue balls are in your bag? - Three painters
One painter would have painted the fence for 15 hours, the second for 12 hours. The plot had to be painted in four hours, so they called the third one, and all worked together. For what time would the third painter paint fence the fence alone? - Class Passing Rate Girls
There are 30 boys in the class, and 28 of them passed. All the girls passed. A total of 95% of the students passed the course. How many girls are in the class? - Movie Viewers Three Days
In three days, 3960 viewers saw the film. How many viewers watched the movie each day if we know: the second day saw 20% more viewers than the first day and the third 20% less than the first and second together. - Catching Up on Bicycle
Miles set off from point A at 13:00 at a speed of 4 km/h. At 3:30 PM, Lisa set off on her bicycle at 20 km/h in the same direction. How many minutes will it take Lisa to catch up with Miles? - Father Daughter Age Multiple
Dad is 43 years old, and his daughter is 17 years old. How many years ago was a father three times older than a daughter? - Diesel fuel
In the morning, we refueled and set off. After the first stop, we passed 20% of diesel and 10% of the balance after the second. At the third stop, we had only 9 liters of diesel and had to refuel. How big a tank do we have? - Triangle side calculation
The triangle has a circumference of 35 cm. One side is four times longer than the other and, at the same time, 1 cm longer than the third. Determine the sides of the triangle. - Cottage room occupation
Triple and quadruple rooms are available in the cottage for 30 children. Rooms are occupied so that all beds are always occupied. Determine how many rooms the children will occupy in total if there are four times as many children in the four-bedroom rooms - Block Edges from Volume
The block volume is 900 cm3, and the surface is 600 cm². The area of one wall is 60 cm². Calculate the length of edges a, b, and c. - Miss competition
How many girls took part in the Miss School competition if the nines grade made up half of the contestants, two-thirds of the remaining girls were from eighth grade, and the seventh grade were three? - Dice box count
Stanley got a box of dice. Half of them were brown and blue, and the other half were red, yellow, and green. There were 12 more red than yellow dice, 19 more red than green, and 5 more green than yellow. How many cubes were in the box? - Pupils
There are 350 girls in the school, and the other 30% of the total number of pupils are boys. How many pupils does the school have? - Number multiplication puzzle
To get their sum, what number do you have to multiply the difference between 3 1/2 and 2 3/4? - Primary School Graduates Paths From the last year of one primary school, 8% of pupils went to study at a gymnasium, 60% went to vocational schools, and 8 pupils went into practice. How many students were there in total in the last year? How many went to study?
- Chickens and hares
There were chickens and hares in the yard. Together they had 22 heads and 54 legs. How many hens were there in the yard? - Two Workers Digging Canal
The first worker digs a canal in 3 hours. The other will dig the trench in 4 hours. They will work 1 hour opposite each other and then together. How long will it take them? - CD DVD shelf
George had music CDs and DVDs stored on the shelves. There are a total of 64. How many DVDs are on the shelf if there are seven times less than a CD? - Equation - inverse
Solve for x: 7: x = 14:1000
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