Maths practice for 14 year olds - page 298 of 381
Number of problems found: 7613
- Pumps
Four identical pumps fill the tank in 40 hours. How many pumps would we have to use if we wanted to save 8 hours? - Rhumbline
Find the circumference and area of the rhumbline ABCD if the short side AD has a length of 5 cm, and the heel of the height from D leading to the AB side divides the AB side into two sections of 3 cm and 4 cm. - Distance 3615
Honza left home at 8 a.m. on foot at an average speed of 4 km/h. At 11 a.m., dad followed him on a bicycle at an average speed of 40 km/h. How long and at what distance from home will dad catch up with Honza? - Master work
The master will complete the given task in 4 hours. When they're done together, how long will it take to master students entirely in three hours?
- Horizontal Cylindrical Segment
How much fuel is in the horizontal cylindrical segment tank with a length of 10m, a width of level 1 meter, and a level of 0.2 meters below the tank's upper side? - Tetrahedral pyramid
It is given a regular tetrahedral pyramid with a base edge of 6 cm and a height of pyramid 10 cm. Calculate the length of its side edges. - Canister
Gasoline is stored in a cuboid canister having dimensions 44.5 cm, 30 cm, and 16 cm. What is the total weight of a full canister when one cubic meter of gasoline weighs 710 kg, and the weight of an empty canister is 1.5 kg? - Daughter 3610
A mother is six times older than her daughter. The mother will be twice as old as the daughter in twenty years. How old is the mother, and how many are the daughter? - Surface and volume od cuboid
The square base of the cuboid has an area of Sp = 36 cm2, and its height is 80 mm. Determine its surface area and volume.
- Creatures 3607
The collector of beetles and spiders had ten creatures in a box. There were a total of 72 legs in the box. How many beetles and how many spiders? - One-thirds 3606
They baked one-third of the flour on the first day in the bakery and used 75% of the rest the next day. On the third day, 120 kg of flour remained. How much flour did they have in the beginning? - Achieve 3605
Jarda scored 18 goals more than Karel. They scored a total of 86 goals. How many goals did Jarda achieve, and how many did Karel score? - Mushrooms
Eva and Jane collected 114 mushrooms together. Eve found twice as much as Jane. How many mushrooms were found in each of them? - Internal angles
Find the internal angles of the triangle ABC if the angle at the vertex C is twice the angle at B and the angle at the vertex B is 4 degrees smaller than the angle at vertex A.
- Inequality with fraction
(1 + 3x) / (x-2)> 3 - Cylinder:
Cylinder: calculate the height of a 3-liter cylindrical pot with a diameter of 10 cm. - Gingerbreads 3599
Janko and Marienka ate 36 gingerbreads together. Janko ate 14 more gingerbread. How many gingerbreads did Marienka eat? How much did Janko eat? - Together 3598
Adam, Boris, and Cyril have CZK 21 together. Adam and Boris together have CZK 11, and Boris with Cyrillic CZK 13. Adam has. ... ..CZK, Boris. ... ... CZK and Cyril. ... .CZK. - Playing match Romania played a match against Canada. Canada won the duel by six goals. They scored a total of ten goals in the game. Find the number of goals scored by Romania.
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
