Maths practice for 14 year olds - page 38 of 195
Number of problems found: 3892
- Sheep and cows
There are only sheep and cows on the farm. Sheep are eight more than cows. The number of cows is half the number of sheep. How many animals live on the farm? - Spherical cap
Place a part of the sphere on a 4.6 cm cylinder so that the surface of this section is 20 cm². Determine the radius r of the sphere from which we cut the spherical cap. - Triangle Side Lengths Probability
We have the numbers 4, 6, 9, 13, and 15. What is the probability that these will be the lengths of the sides of the triangle? (Consider only scalene triangles.) - Football card distribution
Tomas was to distribute 259 cards with pictures of football players among three friends. And each subsequent friend had to get 2x more cards than the previous one. How many cards did the other friend receive? - Cars Meeting Speed Difference
The distance between cities A and B is 125 km. Two cars start from these places at the same time. The difference in their speed was 3 km/h. They met in an hour. What was the speed of each car? - The blue
The blue and red coats originally cost the same. Then red prices rose by 27%, and blue prices fell by 87%. Then their price differed by CZK 300. How much did the originally blue coat cost? - Triangle 42
Triangle BCA. Angles A=119° B=(3y+14) C=4y. What is the measure of triangle BCA=? - Candies
In the confectionery, the price for 1 kg of pistachio candies cost CZK 360, and the price for 1 kg of hazelnut candies was CZK 280. Mixing these two types of sweets created a box of chocolates. How many grams of pistachios and hazelnut candies were in the - The dormitory
The dormitory accommodates 150 pupils in 42 rooms, some of which are triple and some are quadruple. Determine how many rooms are triple and how many quadruples. - Table Tennis Tournament Matches
Eight players took part in the table tennis tournament. The tournament system allows players to play with each other only once. How many matches will take place in this tournament? - Bank Deposit for Interest
Tatrabanka offers deposits with an annual interest rate of 3.6%. How much EUR must an entrepreneur deposit in Tatrabanka so that at this interest rate, after the end of the year, the bank will credit him with €1,000 interest on the deposit? - Egg Incubator Hatch Percentage
92% of the eggs hatched in the incubator. 168 eggs remained unhatched. How many eggs have initially been in the incubator? - Hare Food Consumption Days
Michal is a hare breeder. He knows that seven hares will eat 98 doses of food in 7 days. How many must equal doses of food be available to have enough for six days for five hares? - City visit arrangements
A group of foreign tourists planned to visit 4 Slovak cities - Košice, Prešov, Poprad, and Kežmarok. They decided that Prešov would be the third city they would visit. How many different ways could they have organized a visit to the listed places? - Sick Children Percentage
In the first week of March, 5% of children in the kindergarten fell ill. In the second week of March, another 9 children fell sick, increasing to 20% of the total number of children. How many children went to kindergarten? - Square Lounge Drunken Shopper
After a long dinner, inside a lounge in the shape of a square ABCD, a drunken shopper E lies in such a way that the triangle DEC is equilateral. Spy F lies on the edge of BC, with |EB|=|EF|. What is the size of the angle CEF? - Jane plants
Jane plants flowers in the garden. If she planted 12 every hour instead of 9 flowers, she would finish the job an hour earlier. How many flowers does she plant? - Prism diagonal
The body diagonal of a regular square prism has an angle of 60 degrees with the base, and the edge length is 10 cm. What is the volume of the prism? - Four-Digit Lock Codes
How many four-digit codes on the wheel lock can we create from the digit 0,1,2,3,4,5,6,7,8,9 if it is true that we cannot repeat the numbers? - Rectangle
There is a rectangle with a length of 12 cm and a diagonal 8 cm longer than the width. Calculate the area of a rectangle.
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.
