Maths practice for 12-year-olds - page 249 of 347

Number of problems found: 6923

Paper harvest
Four boys passed the paper to harvest. John received 111 1/3 ducats, Michael 228 3/4, Peter 195 1/2 ducats, and Robert 146 1/4 ducats. How many kg of paper did each boy bring if they bought paper at 2.50 ducats per kg?
Equation 15
Solve equation with variables on both sides:
Yogurt calcium
100g of yogurt contains 150mg of calcium. How many kg of yogurt would we have to eat to meet the daily dose of calcium 1000mg?
Average distance
The tourist section covered 14.5 km in 2.5 hours. What distance did he cover on average per hour?
Game Points Win Loss
Philip and Dustin agreed that they would score 20 points for winning five in a row and -10 points for losing. Dustin lost eight times out of 10 games and won twice. How many more points does Philip have?
Chimney covering
How many m² of sheet metal is needed to cover 4 m high chimneys with a rectangular cross-section with 2.5 m and 1.2 m dimensions? Add 1/20 to the folds.
Colored paper
Can a 4 cm, 3 cm, and 2 cm block be glued with a colored quarter of paper measuring 7 cm and 8 cm?
Soil transport
Excavated soil increases the pile's volume by 1/3. Can a 6 m, 2.5 m, and 1.8 m truck body be used to transport excavated soil to a 5 m, 2 m, and 1.5 m block-shaped pool?
Dance participation
The dance group is preparing for a performance. The program includes dances in pairs, fours, and fives. How many members does a group have to have to dance all these dances and have all their members participate in each dance?
On Children's
On Children's Day, the organizers bought 252 pieces of chewing gum, 396 candies, and 108 lollipops. They want to make as many of the same packages as possible. Advise them what to put in each package and how many packages they can make this way.
Hour salary
You work for 4 hours on a Saturday and 8 hours on Sunday. You also receive a $50 bonus. You earn $164. How much did you earn per hour?
Pamela
Lara Pamela spends her salary of 3000 on food, clothing, recreation, and savings, which are in the ratio of 48:20:15:37, respectively. How much does he spend on savings?
Suzan
Susan's age will be after 12 years, four times as much as twelve years ago. How old is Susan now?
Crates of apples
Martin tore three and a half crates of apples in two and a quarter hours. How many crates will it tear in one hour? How long will he have to tear to meet the daily standard of 10 crates?
Crumbs Brought by Ants
In the evening, four ants counted the crumbs they had brought. The first ant had 1.5 times as many as the second, the second ant had half as many as the fourth, and the third ant had twice as many as the second. They had 26 crumbs in total. How many crumb
Divisible number
Six cards with digits 1, 2, 3, 4, 5, and 6 are on the table. Agnes made a six-digit number from these cards, divisible by six. Then she gradually removed the cards from the right. A five-digit number divisible by five remained on the table when she remove
Unknown numbers
The sum of two consecutive natural numbers and their triple equals 92. Find these numbers.
Powder washes
Mrs. Janka bought washing powder that weighed 5 kg. The powder is enough for 50 washes. However, she decided to fill the measuring cup with powder only three-fifths of the volume. How many washes does the powder last for her?
Ľé sweets
There are 20 sweets in the bag. Some are chocolate, other coconuts, and the remaining marzipan. Chocolate is four times more than coconut. Marzipan's less than chocolate. How much is in a bag of coconut sweets?
Clock angle
What angle do the clocks make at 4:30?

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