Examples of equations for practice for 12 year olds - page 6 of 59
Number of problems found: 1180
- Textbooks 83010
At 9 a.m., a truck with textbooks left Brno at a speed of 50 km/h; at 9:30 a.m., a passenger car left Brno with another delivery of textbooks at a speed of 70 km/h. When will the passenger car catch up with the truck? - Squirrel 82999
A supply of acorns will last a squirrel for 12 weeks and a squirrel for 18 weeks. They ate acorns together for 4 weeks, then the squirrel left. How long did the squirrel have a supply of acorns? - Remaining 82995
Children in the school club made a tricolor chain from crepe paper. One-eighth of the chain is red, three-quarters is olive, and the remaining 20 cm is blue. What length of chain did they make? - Expensive 82986
Mom bought three cakes at the pastry shop. The first cost 72 crowns. The second was a quarter cheaper than the first. The third dessert was a third of the total price of all three desserts. By how many crowns was the third dessert more expensive than the
- Dominika 82882
Dominika and Ninka are in the park. A 48 kg girl sits on the right side of the swing at a distance of 1.9 m from the axis of rotation. Dominika acts on the swing on the left side with a specific force at 2 m from the axis. What force should she exert to k - Counterweight 82873 What is the weight of the counterweight of a crane that lifts a 20 t weight? The arm's length is 15 m, and the arm's length with the counterweight is 10 m. Write the answer in tons.
- Supported 82872 An 8-meter-long swing is supported at the center. A 30 kg boy is sitting at one end. How far from the axis of rotation on the other side of the swing must the second boy of mass 40 kg sit?
- Quadruple 82844
I think a number. I reduce its quadruple by 8 and divide the result by 3. I get 100. Which number do I think? - Multiplies 82742
Jana is so many years old this year that if she multiplies her age by seven and adds 9, she gets 100. How old is Jana?
- Kilometers 82735
Fifteen kilometers in front of us, a car travels at a speed of 70 km/h. We drive at an average speed of 100 km/h. How many minutes will it take us to catch up with the car? - Greater 82662
Five times its number is as much greater than 50 as its half is less than 49. - Two-thirds 82565
Karol spent half of his pocket money. He gave two-thirds of the rest to his friend Michal. He had 50 CZK left from his pocket money. A. Calculate how much money Karol gave Michal. B. Calculate how much money Karol received as pocket money. - Misha 82482
Misha the bear slept 60 hours in one week. More than he was awake. How many hours per week did Mišo sleep? - Taking 82481
There were pears in the basket. I took a third of them, which was 6 pears. How many pears were in the basket before taking it?
- Grandmother's 82432
Filip traveled 15 km from Monika's house to his grandmother's village. Monika can visit him. They meet at the point where the bikes arrive. They both left the house at 9:00. At what time did they meet when Philip was walking at a speed of 19 km/h and Moni - Remaining 82419
Seven pavers would pave the square in 15 shifts. After five shifts, two pavers fell ill. How long will it take for the remaining pavers to finish the job? - Reassigned 82404
Five grinders grind 120 products in 12 hours. After 4 hours of work, another 11 grinders were reassigned to the workshop. Will he complete the entire job in 6 hours? - Seamstresses 82403
Eight seamstresses sew an order in 85 hours. After 21 hours, 3 seamstresses had to leave for other work. In how many more hours will the order be fulfilled? How many hours did the whole job take? - Chocolate 82258
How many pieces does the chocolate have if I ate 6/7 of it, which is 12 pieces?
I have 100 marbles. One-quarter of them are white, and 3 fifths of the rest are blue. 1 third of those that are neither blue nor white are red, and the rest are green. How many marbles do I have?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
