Maths practice for 14 year olds - page 94 of 375
Number of problems found: 7497
- Numbered
In the past, passengers in public transport vehicles marked such single-use tickets, which had 9 numbered boxes, a certain number of which were punched with a marker. A) In how many different ways could the ticket be marked if 3 boxes were punched? B) How - Bike discount increase
Peter chose a bike for €750 in a bike shop. With accessories, its price increased by 10%. As the store had a summer sale, Peter received a 10% discount on the purchase price. How many euros did he pay for the purchase? - Triangle perpendicular hypotenuse
Calculate the perpendicular s in the right triangle STU (the right angle at the vertex U), if the hypotenuse is long u = 93cm and the perpendicular t = 48 cm - Temperature linear fit
At 2:00 a.m., the temperature was -7°F. At noon the temperature was 18°F. What expression represents the increase in temperature? - Ice cream combinations
The contestants have to create an ice cream sundae containing three different types of ice cream. They can use cocoa, yogurt, vanilla, hazelnut, punch, lemon and blueberry ice cream. How many different ice cream sundaes can the contestants create? - Committee election possibilities
5A students must elect a three-member class committee. However, only 6 pupils out of 30 are willing to work in it. How many possibilities do they have to create it if it does not matter what function the committee member will perform? - Employee reward percentage
The employee received an extraordinary reward of 320 euros, 8% of his monthly salary in September. What is his monthly salary? - Grade commute students 50% of 9th graders of our Bratislava school are non-Bratislava pupils. One-third of them commute by bus, a fifth by bike, and seven pupils walk. How many students are in the 9th grade?
- Cashews + beetroots
The lady sells nuts. It has two mixtures of nuts (cashews/beetroots) in a ratio of 2:1 and 1:3 (cashews and peanuts). Determine the ratio to mix both mixtures so that the ratio of cashews/beetroot in the resulting mixture is 1:2. (Please provide a certifi - Rectangle perimeter construction
We have to construct a rectangle with a circumference of 30 decimetres. The rectangle has sides of whole decimetres. How many different rectangles can we make? - Cancer in woman population
In a particular population of women, 40% have had breast cancer, 20% are smokers, and 13% are smokers and have had breast cancer. If a woman is selected at random from the population, what is the probability that she has breast cancer, smokes, or both? - Children carnival tickets
A carnival is organized in the village. The ratio of the price of one child ticket to the price of one adult ticket is 3:4 (in that order). Two children's tickets and three tickets for an adult cost a total of 270 Sk. How much will 2 adults and 3 children - Number difference multiplication
To get their sum, what number must you multiply the difference between 3.5 and 11/4? - Triangle area perimeter
Calculate the area and perimeter of the right triangle ABC if A [5.5; -2.5] B [-3; 5] C [-3; -2.5] - Pupil pair combinations
Without listing all the possibilities, calculate how many different pairs can be made A) of 12 pupils who want to go down a water slide on a two-seater inflatable in the water park. B) of 15 pupils who want to ride toy cars in the amusement park. - Mason shift sickness
Six masons of equal performance were able to plaster the walls of the new garages in 18 shifts. After 4 shifts of joint plastering, 2 got sick. a) In how many more shifts did the masons complete the said plastering? b) In how many shifts was the assigned - Percentage - rhombus
If the rhombus side in the image increases by half, by what percentage will the area of the rhombus increase? - Circle waste percentage
They cut a full circle from a square plate with a side of 200 mm. What percentage is waste? - Scooter distance directions
Katka and Honza rode out on their scooters at the same time. Katka drove at a speed of 4.5 km/30 min, and Honza drove at a speed of 4 km/20 min. a) how many m did they travel in 2 minutes if they went in the opposite direction? b) how many miles did they - Cleaner hours extension The department store originally employed 8 cleaners for reduced working hours of 4 hours a day. When two of them terminated their employment, 6 cleaners agreed to extend their original daily working hours. Specify its length in hours and minutes.
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