Maths practice for 14 year olds - page 291 of 370

Number of problems found: 7388

Equation with abs
Solve this equation with absolute value member: |3(3x-1)|=8
Determine 3784
The teacher brought to class two wooden models of cones, which were made of the same type of wood. The first model weighed 800g. The other had twice the base radius but half the height. Determine the mass of the second cone in grams.
Sides ratio
Calculate the circumference of a triangle with an area of 84 cm² if a:b:c = 10:17:21
Together 3781
Milos would do the work himself in 5 hours. How much would it take Dan to do the job together in two hours?
Number 3780
25% of the number x equals 2^-1. What is the value of x?
Determine 3779
Determine the perimeter of the rectangle if its length and width are 2:1 and the area is 98 cm².
The rectangle
The length and width of a rectangle are in the ratio of 5:2. Its length is 7.5 cm longer than its width. Find the area of the rectangle. Determine also its length and its width.
Unknown amount of money
Damian and Denis split an unknown amount in the ratio of 5:4. Damian got six euros more than Denis. Calculate an unknown amount. Determine how much money Damian got and how much Denis got.
Unknown number x
5% from an unknown number equals the number 2⁶. What is the unknown number?
Shots
Determine the percentage rate of keeper interventions if 32 shots don't catch four shots.
Vegan shop
The shops brought 23.2 kg of goods, fruits, vegetables, and nuts. The fruit was 4.7 kg more than vegetables, and the nuts were 1.5 kilograms less than the fruit. Determine the number of fruits, vegetables, and nuts.
Determine 3769
12% of x is 58 more than (6²) +5. Determine x.
Multiply 3766
Peter had a number in mind and said: When I divide this unknown number by the square root of 27 and then multiply by three, I get an unknown number. What number did Peter think?
Grass
Peter and Stano lawn grass for 3 hours 12 minutes. How long would it take for Peter if Stano lawn grasses himself for 384 minutes?
Discounting 3762
The price of the jacket was x €. The coat was first discounted by 12% and then increased in price by 4% of the discounted amount. After discounting and subsequent price increases, the jacket cost exactly 91 euros and 52 cents. Find the flood price of the
Runner
Peter ran at a speed of 12.4 km/h. After 45 minutes of running, he had a hiatus. The track is 31 km long. How many kilometers is he still to run if he still runs at the same speed?
Methodius 3758
Milan and Methodius are now 70 years old. Seven years ago, Milan was 1.8 times older than Methodius. Determine how old Milan is now and how many Metoděj is.
Reduction 3757
The goods became cheaper twice a row, first by 18% and then by 16% of the new amount. After this double reduction, it cost precisely 516 euros and 60 cents. Determine the flood amount of the goods.
Belgium vs Italy
Belgium played a match with Italy and Belgium won by two goals. The match fell a total of 6 goals. Determine the number of goals scored by Belgium and Italy.
Represents 3753
Dana and Julka's numbers are different. Dana's number represents the eleventh root of Julkin's number. The sum of their numbers is 2050. Determine what number Dana has and what Julka has.

Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.