Equations practice problems - page 66 of 249
Number of problems found: 4965
- Janka bank interest
Dana and Jane deposited their money in the bank in an account with an interest rate of 2.9 percent pa. How many euros did Jane invest if she earned 4.64 euros in interest and Dana 29 cents less? - Slovakia book VAT
Slovakia's VAT rate is reduced to 10% on some goods (e.g., books, textbooks, and medicines). Normal VAT is 20%. How much would we pay for a book that cost 69.00 euros if we didn't have to pay VAT? - Workshop order days
In the first workshop, there are 3 workers; in the second workshop, 2 work equally efficiently. They worked on the order together, and for the last 2 days, only workers from the first workshop. If only the first workshop were working, the order would be c - Marbles
Leo has 40 marbles. His brother has thrice as many marbles as he does. They have 160 marbles. What does Leo's brother have? - Swimming pool
Thaddeus set off on foot to the swimming pool, which is 18 km from his residence. The trip took him two and a half hours. An hour later, his brother William met him on his bicycle, whose journey took three-quarters of an hour. a) Show the described situat - Unknown number reduction
If we reduce the unknown number by 336, we get 65% of its value. Specify an unknown number. - Number summand division
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. - Parallelogram - sides L
In a parallelogram, the sum of the lengths of the sides a+b = 234. The angle subtended by the sides a and b is 60°. The diagonal size against the given angle of 60° is u=162. Calculate the sides of the parallelogram, its perimeter, and its area. - Martin history grades
Martin has an arithmetic average of 2.8 out of five history grades. If he only gets one from now, how many ones would he have to get at least so that the arithmetic mean of his history grades is less than 2? - Bakery worker output
A bakery worker makes 300 rolls more than an apprentice in 2 hours. In 4 hours, they both made 9800 rolls together. What are the hourly output of the worker and the apprentice individually? - Backpack pocket price
Barbara chose a backpack for school that was three times more expensive than a shoe bag. If the backpack were 30 euros cheaper, it would cost the same as a shoe bag. How many euros did a backpack cost? - Jana Petra windows
Jane can wash 20 windows alone in 4 hours. Petra can do the same job in 6 hours. How long will it take them working together? - Bricklayer student wall
A bricklayer can repair a wall by himself in 30 minutes. His students would take an hour. How long will it take them working together? - Interior angles - sum
For the sum s of the interior angles of a polygon, where n is the number of its sides, the relation s=(n−2)⋅180 degrees applies. How many sides does a polygon have if the sum of its interior angles is 900°? - Equation root variable
Which number should be substituted for the variable in the equation: 4x² (7-x) = a-3- (x-2), so that the root of the equation is the number 5? - Bratislava BA-BB
A truck drove from Bratislava to Banská Bystrica at a speed of 30 km/h. At the same time, a tractor drove at a speed of 40 km/h. The tractor arrived in Banská Bystrica 1 hour and 45 minutes earlier than the truck. What is the distance between the cities? - Milan Sara age
Milo, Sara's husband, is four years older and twice as old as she was 17 years ago. How old are they? - Number form nearest We can write the number 1003 in the form 7n + 2. Which can we write the nearest number in this form?
- Friends iron average
Five friends compared how much scrap iron they brought to the collection. The average was 55 kg, but John brought only 43 kg. What was the average in kg without John?
- Mr Juma Mr. Juma paid his workers as follows. He gave 1/6 to the first, 2/3 of the remainder to the second, and 2400 to the third worker. How much money did he have at the beginning?
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