Time + natural numbers - practice problems
Number of problems found: 112
- Numbers 4328
What is the sum of the numbers in 2006? - Weeks
22 weeks is equal to how many days? - Year 2018
The product of the three positive numbers is 2018. What are the numbers? - Seven numbers
Write seven 4-digit numbers divisible by three and at the same time by 4. - 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? - Benjamin 7254
The sum of the years of Simona, Karel, and Benjamin is 54. What will be the sum of their years by seven years? - 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? - 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? - Age
In 1960, my age was equal to the digits sum of the year of my birth. What is my age now? - Grandfather 7622
My grandfather says, "My son and I are 100 years old, my son and my grandson are 62 years old, and my grandson and I are 80 years old together." How old is your grandfather? - People 7331
How many people must be in a group for at least two of them to be born in the same month? - 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? - Monica 3
Monica works on her drawings for 2 hours. She spends 1/6 hour on each drawing. How many drawings does she work on in 2 hours? - Yesterday 79344
Petr played Minecraft for 2 hours yesterday. Pavel played 10% longer. How many minutes did Pavel play? - 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? - Hundred 7239
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? - The town
The town population is 56000. It is decreasing by 2% every year. What will be the population of the town after 13 years? - Workshop
The workshop has to be produced for 5 days 2000 components. How many components must be produced in the workshop daily, and how much per hour if the shift is 8 hours? - Schoolyard 79854
The children ran the school relay four times around the schoolyard. The shortest measured time was 2 minutes, and the longest was 3 minutes. In what was the longest and shortest time could the relay run around the yard?
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