Equation + time - math problems
Number of examples found: 328
- Six years
In six years Jan will be twice as old as he was six years ago. How old is he?
- Father and sons
Father is 27 and his sons 2 and one year. In how many years will his sons sum up to half his age?
- How old
The student who asked how many years he answered: "After 10 years I will be twice as old than as I was four years ago. How old is student?
- Eight years ago
The son asks his father how old he is. My father said: In ten years, I will have twice as much as I had eight years ago.
- Father and son
Father is 44 years old, his son 16 years. Determine how many years ago was the father five times older than the son.
Honza is 13 years old and Peter 21 years old. After how many years are their ages will be at ratio 7: 9?
- Five pupils
Five pupils clean 30 chairs one hour before four pupils. How many chairs clean one pupil in 1 hour?
- Brother and sister
When I was 8, my sister was 4, now I am 18, how old is my sister?
Susan's age will be after 12 years four times as much as twelve years ago. How old is Susan now?
- Father and son
Father is 48 years old, son 23. When will be the father twice older than a son?
- Family 8
Father is 38 years old, daughter 12, son 14. How many years will father have as many years as his children together?
Seven times of my age is 8 less than the largest two-digit number. How old I am?
- Work together
Two bricklayers plastering a wall. The first would plaster it in 8 hours, the second in 12 hours. How many hours will they be done with the work if they work together?
- The tank
The tank had 9 inflows to be filled in 21 days. After 9 days, 3 trips out. How many days did the remaining 6 tributaries fill the tank?
- Two ages
Gabrielle is 9 years younger than Mikhail. The sum of their ages is 87. What is Mikhail's age?
- Two tributaries
Two tributaries of the pool fill it in 10 hours. One of the tributaries would fill 15 hours. How long would fill the first tributary?
- Clock hands
The hands on the clock shows the time 12 hours and 2 minutes. Calculate the size of a sharp angle between clock hands three hours later.
Peter and Stano lawn grass for 3 hours 12 minutes. How long would it take to Peter if Stano lawn grass himself for 384 minutes.
Carla is 5 years old and Jim is 13 years younger than Peter. One year ago, Peter’s age was twice the sum of Carla’s and Jim’s age. Find the present age of each one of them.
- Charles Bridge
Charles Bridge was 15 times older than Frantův bridge from 1900 in 1931. How old is the Charles Bridge?
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation? Do you want to convert time units like minutes to seconds?