Maths practice for 11-year-olds. - page 207 of 222
Number of problems found: 4421
- Pizza master
Master says that he can split pizza into 16 parts by five equals straight cuts. Is it possible? - 9-gon
The sum of interior angles of 9-gon is: - Aunt
Annie's aunt is 35 years old, and Annie is 14 years. For how many years will aunt have twice as many years as Annie? - Little hand
What angle shifted the little hand on the clock after one hour and 38 minutes? - Clock Tower
What angle is between the hands-on Clock Tower when it shows 17 hours and 35 minutes? - Cuboid
How many times will the volume of a cuboid increase if one dimension is twice larger, the second dimension three times larger, and the third dimension four times lower? - Lunch
Jane eats the whole lunch for 30 minutes. Which part of the lunch does he eat in 180 seconds? - Step length
Katy, whose step measures 50 cm, counted 294 steps from her house to her aunt's. If his step measures 70 cm, how many steps will Katy's father take to his aunt? - Feed for horses
In the kennel, have feed for two horses for 21 days. The station brought an additional five horses. How many days will feed for all the horses last if they have the same daily ratio? - Coal
The daily consumption of 1.6 tons of coal is sufficient to supply the boiler for 42 days. How long is sufficient to supply when it burns only 1.2 tons of coal a day? - Florist's
The flower shop has 72 white and 90 red roses. How many identical bouquets can they most tie together so that all the roses are used? - Tailor master
There are less than 50m of textile in the tailoring workshop. No textile is left when cutting on a blouse (consumption 1.5m). No textile is left when using a cloth (consumption of 3.2m). How many meters of textiles are in a tailor's workshop? - Painting
Joseph and Fero painted the bench for four hours. If four friends helped him, how many hours would it take him to work? - The horses
A couple of horses consume 88 kg of oats for 14 days. How many oats were consumed by seven horses at the same consumption for six days? - Wood
Peter chops wood. If they cut down a half hour a day, he would finish work in nine days. But Peter needs to finish work three days earlier. How many minutes should they cut down a day? - Cooks
Four cooks cleaned 5 kg of potatoes for 10 minutes. How many cooks would have to work cleaning 9 kg of potatoes for 12 minutes? - Greenhouses
Two workers would complete the installation of greenhouses for 54 hours. For how many hours does the installation have nine workers? - Minute hand v2
In how many minutes does the clock's minute hand angle be 60 degrees? - Square and circle
Into the square is an inscribed circle with a diameter of 10 cm. What is the difference between a circumference square and a circle? - Minute-hand
How long will a large (minute) hand travel on the clock for 48 minutes if its length is 56 cm?
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