Math practice for 13 year olds - page 258 of 420
Number of problems found: 8399
- Motorcyclist and cyclist
At noon, a cyclist left Šumperk for Olomouc at a 20 km/h speed. Thirty minutes later, a motorcyclist drove up behind him at 60 km/h. At what distance and at what time did the motorcyclist overtake the cyclist? - Cars Meeting Time
The distance from Žilina to Košice is 260 km. From both places, 2 cars started opposite each other simultaneously. A car from Žilina travels at a speed of 58 km/h. The speed of a car from Košice is 72 km/h. In how many hours will these two cars meet? - Opening of a safe
How great a force would need to be exerted to open the rectangular door of a water-tight safe with dimensions 30 cm x 20 cm, built into the wall of a cabin of the sunken Titanic, which has been lying for more than 105 years on the bottom of the Atlantic O - Testing preparation time
Mike has also been preparing for testing 9 for a long time. He devotes a third of his time to Czech, half of his time to mathematics, and discusses with his father for 10 minutes. How many minutes a day does Mike prepare? - A report
Maricris can type a committee report in 5 hours. Jane helped Maricris, and together they finished the report in 3 hours. How long would it take Jane to complete the report she had worked on alone? - Middle finger
Jana counts on one hand, going finger by finger. She starts counting from her thumb through her index finger, middle finger, and ring finger up to her little finger, reaching the number 5. Then she immediately goes back to her ring finger (6), middle fing - Ladder rung cutting
To make a ladder, the craftsman needs to cut as many rungs of the same length as possible. He is to cut them from two boards, one is 220 cm long, and the other is 308 cm long. How long will the bars be, and how many will there be? - Perctentages
35% of what number is 35? - Bob traveled
Bob traveled 20 meters to Dave's house. He arrived in 3 minutes. What was his average speed for the trip? - In the cinema
There were 560 people in the cinema. 35% of them wore glasses. Of this number, 25% were women. How many men wore glasses? - RT - inscribed circle
In a rectangular triangle with sides lengths> a = 30 cm and b = 12.5 cm, the right angle is at vertex C. Calculate the radius of the inscribed circle. - LCD two fractions
What is the least common denominator of 11/15 and 12/19? - Dice edge size
The dice have a volume of 80 cm³. Calculate the edge size in mm. - On the 4
On the way to play disc golf with his two boys, Mr. Smith purchases three muffins and two water bottles, totaling $9.75. The following week he only had Asher with him, so he bought two muffins and one bottle of water totaling $6.00. What is the cost of on - Midpoint 4
If the midpoint of a segment is (6,3) and the other endpoint is (8,-4), what is the coordinate of the other end? - Coordinates of midpoint
If the midpoint of the segment is (6,3) and the other end is (8,4), what is the coordinate of the other end? - Dirty road
Mr. Smith is on a road trip to a remote disc golf course 180 km away. He travels part of the way at 100 km/h along the highway and part of the way at 50 km/h along dirt roads. If it took 2 hours to get there, how many hours did he spend on dirt roads? - Horse eating days
Each of the six horses ate just 75 days in a hundred days. How many and at least days could be during which at least five horses ate? - Ladder
Adam placed the ladder of the house, the upper end reaching the window at the height of 3.6 m, and the lower end standing on level ground and distant from a wall of 1.5 m. What is the length of the ladder? - Average Speed Walk Hill
The tourist walked on the plain for 2 hours at a speed of 6 km/h. For another hour, he climbed a steep hill at a speed of 3 km/h. What was his average speed?
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