Natural numbers + time - practice problems - page 3 of 6
Number of problems found: 117
- Three Titanics
Three steamers sailed from the same port on the same day. The first came back on the third, the fourth 4th day, and the third returned on the sixth. How many days after leaving, the steamers meet again in the harbor? - The drama club
The drama club meets in the auditorium every six days, and the choir meets there every five days. If the groups are both meeting in the auditorium today, then how many days from now will they next have to share the auditorium? - Happy marriage
Jan and Marienka have been living in a happy marriage for several years. Jan's age is written in the same numbers as Marienka, only in reverse order. Their ages differ by just a fifth of Marienka's age. Jan is older. How old is Jan, and how many are Marie - Digits of age
The product of the digits of Andrew's age six years ago is the same and not equal to 0. Andrew's age is also the youngest possible age with these two conditions. After how many years will the product of the digits of Andrew's age again be the same as toda
- Together 40541
The first bus leaves every 10 minutes, the second every quarter of an hour, and the third every 18 minutes. At noon, all three lines left together from the station U Kachny. At what time did all the lines go again at the same time? - Regularly 7749
Three steamers leave the port. The first regularly returns after three months, the second after four, and the third after six months. How long before they meet again in the port? - Calculated 8085
Roza calculated that if she read ten pages a day, she would read the whole book in 18 days. After a week, however, she decided to read one more page a day. How many days will he read the entire book? - Marshall
Marshall earns a salary of 36,000 each year and receives a $4000 raise. Jim has a salary of 51,000 yearly, receiving 1500 bonuses. How many years will it take before Marshall and Jim are on the same salary? - Readers
Readers borrowed 220 books in the library during the first three days. On the second day, readers borrowed half as many books as on the first day and, at the same time, 20 fewer books than on the third day. Depending on the quantity x, express the number
- Trams
Two trams started at the same time from the same place. One tram journey takes 30 minutes, and the second 45 minutes to its final stop. How long will the trams meet again? - Younger 7202
If Nina were nine times older and her mother was nine times younger, they would be 85 years old. So, Ninka is 85, and Mom is 85. - John Smith
John Smith is reading a 435-page novel. If he reads the same number of pages per day and the number is a prime number greater than 10, how many pages per day will he read? - Birthday 19313
Jan and Alice have a birthday today. Jan is five years younger than Alice. Ten years ago, they were a total of 65 years old. How old is Jan today? - Mother 13391
Mom is nine years older than her son. In 19 years, his son will be as old as his mother is now. How old is the mom, and how old is the son?
- Together 6451
Peter and Paul are 26 years old together. Four years ago, Peter was twice as old as Paul. How old is Peter? And how much for Paul? - Family age
Kubo is 14 years old and has a one-year-old sister Nina and a four-year-old brother Sam. How many years will Nina and Sam be as old as Kubo? - Peter and Paul
Peter and Paul together have 26 years. Four years ago, Paul was twice older than Peter. How much is Paul and how much is Peter? - The father
The father is three times older than his son. 10 years ago, a father was seven times older than his son. How old are father and son? - Seven numbers
Write seven 4-digit numbers divisible by three and at the same time by 4.
Do you have homework that you need help solving? Ask a question, and we will try to solve it.