Time + system of equations - practice problems - page 11 of 17
Number of problems found: 329
- Kilometers 5972
Pavlina went on a trip on a hiking trail at an average speed of 4 km/h. Dalibor followed her an hour later and hurried at a speed of 7 km/h. How many kilometers does Dalibor cover before he catches up with Pavlina? - Father and son
When I was 11, my father was 35 years old. Today, my father has three times more years than me. How old is she? - Petko 5945
Petko and Lenka are two years older than Jana. Jana is eight years old. Petko is two years older than Lenka. How old is Lenka? How old is Petko? - Kilometers 5928
The tourist traveled 78 km in three hours. For part of the journey, he traveled by bus at an average speed of 30 km/h, the rest, he walked at an average speed of 6 km/h. How long did he walk, and how many kilometers did he walk?
- The train
The train passed the observer in the 20s and passed through a 1500m tunnel in 2 minutes. Calculate the speed (km/h) and train length. - Different 5874
Mišo and Rišo ran back and forth on the running track. They started towards each other, each from a different end of the track. Both were still running at the same speed, each at a different speed. The first time, they met 800 m from one end of the track, - Expressway 5837
The expressway covers the distance from the starting point to the final station in 4 hours and 20 minutes. A passenger train, whose average speed is 30 km/h less, will cover this distance in 7 h 40 min. What is the speed of the express train, and what is - Mother and son
Mother is four times older than her son. In 16 years, the son will be two times younger than his mother. How many years are mother and son? - Tractors
Two tractors plow the field for 4 hours together. If the first tractor plowed half of the field and then the second tractor completed the job, it would take 9 hours. How many hours does the field plow for each tractor separately?
- Question: 5736
A mother is 21 years older than a child. In 6 years, the mother will be five times more than the child. Question: Where's Dad? - Grandfather and grandmother
The old mother is five years younger than the old father. Together they are 153 years old. How many years has each of them? - Highway tunnel
The company built the highway tunnel from two ends in the north-south direction. The average daily performance of the "northern party" rasters was higher than the average daily power of the "southern party" rasters. After 55 business days, both parties me - Traveling 5687
The distance between the two cities is 60 km. It takes a slower vehicle half an hour longer to travel this distance than a faster one traveling at speed 50 percent faster. How fast is each vehicle going? - Contains 5683
Livia, Pavla, and Samuel collect knives. Pavla has more of them than Livia and Samuel combined. Livia only contains blades for a short time, so she only has 5 of them, which is the least. He has a total of 25. How many knives does Samuel have?
- Two workers
Two workers should fulfill specific tasks together for five days. If the first worker increased their performance twice and the second twice fell, it took them just four days. For how many days would he handle the entire task, the first worker himself? - Grandparents 5675
Susan asked her grandmother how many years had passed since her wedding to her grandfather. The grandmother replied that she has been married for 2/3 of her life and that her grandfather, who is 12 years older than her, has been married for 6/11 of his li - Simultaneously 5610
Two cyclists rode towards each other simultaneously from opposite ends of the 28km long route. Each covered the entire route at a constant speed, the fastest being at the finish line 35 minutes earlier. On the route, the cyclists passed each other after 1 - Mother and daughter
The mother is four times older than her daughter. Five years ago, her daughter was seven times younger than her mother. How many years do they have now? - Destination 5286
Daniel reached the destination in 3 hours. Peter came to this place in 4.5 hours. What speed was Daniel moving if we know that Daniel's speed was 30 km/h faster than Peter's, and they both started at the same time from the same place?
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