Family and age ratios
The age of father and son is in the ratio 10:3; the age of father and daughter is in the ratio 5:2. How old are father and son if the daughter is 20? In what ratio is the age of sister and brother?
Correct answer:

Tips for related online calculators
Check out our ratio calculator.
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert time units like minutes to seconds?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert time units like minutes to seconds?
You need to know the following knowledge to solve this word math problem:
Units of physical quantities:
Grade of the word problem:
Related math problems and questions:
- 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?
- If Ben
If Ben is ⅕ the age of his father, ¼ the age of his mother, and twice the age of his sister, how old are his parents and sister if he is eight years old?
- Ages
Father is 36 years old, and his daughter is four years old. Write down the ratio of the age of the father and daughter. In what ratio will the ages of father and daughter be after four years?
- Daughter 19573
The father is 36 years old. His daughter is four years old. Write down the ratio of father and daughter age. What will be the age of the father and daughter in 4 years?
- Father and daughter
The father is 36 years old; the daughter is 20 years younger. What will be the ratio between them if they are ten years older?
- Father 7470
The father is eight years older than three times the son's age. In 20 years, the father will be twice as old as his son. How many years is a father, and how many are a son?
- Father and son
A father's age is five years more than four times his son's age. In 5 years, he will be three times his son's age then. How old is the son now?
- Father and daughter
When I was 11, my father was 35 years old. Now, my father has three times older than me. How old is she?
- 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?
- Daughter's 6484
Jana is four years old. Her father is six times more aged. How many years will a father's age be three times his daughter's?
- Father 81149
The father is older than the son by the ratio of 5:2. Dad is older than 33. How old are they both?
- The family
How old is a mother if she is four times older than her daughter, and five years ago, she was even seven times older than her daughter? Today, a son is 30 years younger than a father. Seven years ago, a father was seven times older than a son. How old is
- Get married
My grandmother married at the age of 21, and her grandfather was 25 at the time. Today, the old father is three times older than at the wedding. How old are they today?
- 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?
- Brother and sister
When I was 8, my sister was 4, and now I am 18. How old is my sister?
- Younger 7832
Dad is r years old, and Mom is two years younger. The son is 20 years younger than the father. How old are they?
- Father 7222
Now a father is five times as old as a son. In 2 years, the father will be four times as old as the son. How old is Dad, and how many are Son now?