Maths practice for 12-year-olds - page 226 of 355
Number of problems found: 7083
- 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 3m and 2.4m? - 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 3m 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) - Bus Trolley Meeting Time
The trolleybus and the city transport bus left the terminal station at 6:00 a.m. at the same time. Both will return to it again by trolleybus after 40 minutes of travel, bus after 55 minutes of travel. At what time will both means of transport meet again - Perimeter - rectangle
The perimeter of the rectangle is about cm. One side is three times smaller than 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? - Temperature 5
The temperature outside starts at 0 Fahrenheit. Over time, the temperature changes at a rate of -0.6 Fahrenheit per hour. How long will it take for the temperature to reach -4.5 Fahrenheit? - Children's pool
The children's pool at the swimming pool is 10m long, 5m wide, and 50cm deep. Calculate: (a) how many m² of tiles are needed to line the perimeter walls of the pool? (b) how many hectoliters of water will fit into the pool? - Cage
How many m² of mesh does a farmer use for fencing a cuboid cage with 25m, 18m, and 2.5m dimensions?
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