Maths practice for 12-year-olds - page 223 of 347
Number of problems found: 6930
- Clubhouse
A clubhouse contained only chairs and tables. Each chair had 4 legs and each table had 3 legs. A group of scouts arrived; each sat on a chair, 2 chairs were left empty, and the total number of legs in the room (people + furniture) was 101. How many chairs - Watching TV
One evening, 2/3 of the students watched TV. Of those students, 3/8 watched a reality show. Of the students who watched the show, 1/4 recorded it. What fraction of the students watched and recorded reality TV? - Pool Height Volume
What height in meters is my grandfather's pool if it can hold 7350 liters of water, and the lower dimensions of the pool are 2.1 and 2.5 meters? - Cube Tank Water Liters
The tank is 3.3 m cube-shaped. If it is filled to six-sevenths of its volume, how many liters of water are in it? - Wall wallpaper time
Zofia decided to wallpaper one wall of her room. How long does he have to go to school if the wall dimensions are 3 m and 2.4 m? - Z7–I–4 2018 MO Betka
Karel was playing with gears assembled into a gear train. When he turned one wheel, all the others turned too. The first wheel had 32 teeth and the second had 24 teeth. When the third wheel (which is in the middle of the gear train) made exactly eight ful - Pool sidewalk area
The rectangular pool has dimensions of 25 m and 12.5 m. Around it is a paved area 3 m wide. What is the area of a sidewalk? - Compare Two Fractions Value
Which number is greater than 2/3 of 19 or 4/5 of 18? (type 1 or 2) - Perimeter - rectangle
The perimeter of the rectangle is o cm. One side is one-third the length of the other. Express the lengths of both sides of the rectangle using its perimeter - MO Z8–I–6 2018
The KLMN trapezium, KL has a 40 cm base and an MN of 16 cm. Point P lies on the KL line so that the NP segment divides the trapezoid into two parts with the same area. Find the length of the KP line. - The publisher
The publisher prepares the release of the dictionary. No matter the number of printed copies, preparation costs are 150000 CZK. The printer charges 80 CZK for one print. A) What are the costs of one dictionary if 5000 copies are printed? B) For what numbe - Class children count
When students are ranked according to height, Katka is 12th Front and 17th Back. How many children are in the class? - Silk Production from Cocoons
Beetles grown on leaves from 40 mulberry trees can produce 40 kg of cocoons yearly. 100 m of silk is produced from this amount. How much silk can be produced from cocoons grown on the leaves of 200 mulberry trees? - Theater Fee Students Count
Five-ninths of the class has already paid CZK 60 for a theatrical performance. So, there are only ten sinners left. How many students go to class? - The quotient
The quotient of g and 55 is the same as 279. What is g? - Two thirds
Find two-thirds of the number equal to two-thirds of 99. Find this number. - Fabric Suits Length How many suits do we sew from 40m fabric if 3 3/4 m of cloth is used per suit?
- Gasoline Consumption Fraction
There were 32 4/5 l of petrol in the car's tank. The driver consumed 3/4 of this amount while driving. Thus, he consumed 32 4/5 liters of gasoline. - Tickets
On Monday, the cinema sold 33 tickets. Every next day, twice as many as the previous day. How many tickets were sold on Friday, and how many totals from Monday to Friday? - Composite ratio
Jakub, Aneta, and Lenka divided 1342 USD in the ratio of 5/2:3/10:1/4. How much did Lenka take?
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