System of equations - practice for 11 year olds - page 3 of 5
Number of problems found: 89
- Equivalent 4205
They have their own money in the magical land, Fu, Ru, and Mu. Three Mu are equal to five Ru. Six Ru is equal to eighteen Fu. How many is Fu equivalent to one Mu? - Rings groups
Twenty-seven pupils attend some groups. Fourteen pupils attend the Dance group, 21 sports group, and 16 in the dramatic group. Dance and sporting attend nine pupils, dance and drama six pupils, sporty and dramatic 11 pupils. How many pupils attend all thr - Grandmother's 4133
Anička went to her grandmother's for spring break. She paid CZK 38 for the trip, which was two-ninths of their savings. She bought a gift for her grandmother for 35.50 CZK and a book for her cousin Míla for 16.70 CZK. How many crowns did she have left to - Transferred 4040
The cowboy has 25 horses in two pens. He transferred 5 from the first to the second, then sold 7 horses from the second. How many horses were originally in the first pen? In the first enclosure, there were just 2 times more horses than in the second enclo
- Can
A watering can full of water weighs 10 kg. Half-full can weighs 5.5 kg. How much weight can? - Beginning 3930
Roland has 490 balls. If he gave 145 bullets to Marek, he would still have 100 more bullets than Marek. How many balls did Marek have at the beginning? How many shots do they have together? - Calculate 3292
The perimeter of the isosceles triangle is 32 cm. The base is 2 cm longer than the shoulder. Calculate the sides of the triangle. - One-sixth 3279
If I had half as many nuts as I have now, I would have the same as Vendulka. If Vendulka had a third less than she has now, she would have the same size as me. If she had one-sixth less than she has and gave me that part, we would have the same amount. Ho - One-sixth 3227
Two cans hold 20 liters of milk. If we pour from one-sixth to the other, both cans will be the same. How much milk is in each can?
- Younger 2826
Milan and Juraj are a total of 56 years old. Milan is eight years younger than Juraj. Please find out how old each of them is. - Creases 2795
Three punch cuts cost as much as two creases. How much does it cost if five punch cuts cost 2 euros 50 cents? - Octopuses 2755
Both octopuses have 112 tentacles. The pink octopus has 20 tentacles less than the yellow. How many tentacles does a pink squid have, and how many tentacles does a yellow squid have? - Brothers 2726
The three brothers are 42 years old together. John is five years younger than Peter. Peter is two years younger than Michael. How old are they? - Saving
The boy has saved 50 coins, € 5, and € 2. He saved € 190. How many were € 5, and how many were € 2?
- Chamber
In the chamber, light is broken, and all from it must be taken at random. Socks have four different colors. If you want to be sure of pulling at least two white socks, we have to bring them out 28 from the chamber. To have such certainty for the pair of g - Birds
On the farm, they have a total of 110 birds. Geese and turkeys together are 47. Hens are three times more than the turkey. How much is poultry by species? - Rabbit family
The rabbit family ate 32 pieces of carrots. The small one ate six pieces, and the dad five more than the mother. How many pieces did Mom eat? - Borrowed book
Jane must, as soon as possible, return a borrowed book. She figured that reading 15 pages a day return the book in time. Then she read 18 pages a day and then returned the book one day before. How many pages should a book have? - Pytagoriade
Two fifth-graders teams compete in math competitions - Mathematical Olympiad and Pytagoriade. Of the 33 students who competed in at least one of the contests, 22 students. Students who competed only in Pytagoriade were twice as many who just competed in t
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