Fractions + time - practice problems - page 10 of 23
Number of problems found: 450
- Pedestrian 6146
A pedestrian met Street Math and asked him what time it was. "Add half the time to midnight to a quarter of the time, and you'll get the exact time." What time was it? - Worker salary
The worker had a salary of CZK 18,000. During the year, his salary was increased by a quarter. He earned a total of CZK 247,500 for the whole year. From which month was his salary increased? - Three men
Alex is half younger than Jan, which is one-third younger than George. The sum of their ages is 48. How are these three men old? - Birthdays 9011
Three sisters have birthdays today, and their ages are in the ratio of 2:3:4. In two years, their ages will be in the ratio of 5:7:9. Find what their ages will be in four years.
- Age of family
The age of father and son is in a ratio of 10:3. The age of the father and daughter is in a ratio of 5:2. How old are a father and a son if the daughter is 20? - Playing
How long have we trained on the pitch when we know that the warm-up took 10 minutes, we trained passes for one-third of the time, and we played football half the time? - The sum 4
The sum of Robin's age is 45. Seven years ago, Robin was 16 years, more than one-half as old as Bruno then. How old is Bruno? - Peter 70794
Peter is x years old. Juraj is 2/5 older than Peter. They are 72 years old in total. How old is Peter, and how old is Juraj? - Honza
Honza is 13 years old, and Peter is 21 years old. After how many years are their ages, will they be at a ratio of 7:9?
- Midnight
How many hours are if the time elapsed since 8:00 is 2/5 of the time that will pass until midnight? - Minutes 47973
The workers halved the planned break, so it lasted 42 minutes. How many minutes would it take to extend it by only a quarter? - One-third 6704
What time is it now that the time that has elapsed since noon is one-third of the time before midnight? - One-fifth 3308
His father was four years as old as one-fifth of his age now eight years ago. How old is she? - Clock
What time is now if the time elapsed afternoon is 2/10 of time that elapses before midnight?
- One-fifth 42071
One-fifth of twice the number t is one. - Doubling
The message is spreading that each day has doubled the number of people who know about it. All know a message for 20 days. How long known it, eighth people? - MP3 player
Mary plans to buy a new MP3 player for 90 USD. And every month, the amount he saved in the previous month doubles. If she saves 3 USD in the first month, how many months will Mary save enough to buy an MP3 player? - Hands
The clock shows 12 hours. After how many minutes will the angle be between the hour and minute hand 90°? Consider the continuous movement of both hands for hours. - Clock hands
The hands-on clock shows the time of 12 hours and 2 minutes. Calculate the size of an acute angle between clock hands three hours later.
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