Age Problems

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Show your work for each problem.

1.
Lisa is 3 years older than her brother. If her brother is 8 years old, how old is Lisa?
1. a)5
2. b)11
3. c)8
4. d)10
2.
A mother is 25 years older than her daughter. If the daughter is 12 years old, how old is the mother?
3.
Tom is twice as old as his sister. If his sister is 7 years old, how old is Tom?
1. a)9
2. b)21
3. c)12
4. d)14
4.
Two sisters have ages that sum to 20. The older sister is 4 years older than the younger. How old is each sister?
5.
A father is 4 times as old as his son. If the son is 9 years old, how old is the father?
6.
Five years ago, Anna was 10 years old. How old is Anna now?
1. a)5
2. b)20
3. c)15
4. d)10
7.
Maria is 5 years older than Carlos. The sum of their ages is 31. How old is each person?
8.
In 6 years, Ben will be 25 years old. How old is Ben now?
9.
A grandfather is 60 years old and his grandson is 12. In how many years will the grandfather be 4 times as old as the grandson?
10.
Three years ago, Jake was half as old as his sister is now. If his sister is 16 now, how old is Jake now?
1. a)11
2. b)8
3. c)13
4. d)5
11.
A father is currently 3 times as old as his daughter. In 10 years, he will be twice as old as she will be. Find their current ages.
12.
Eight years ago, a mother was 4 times as old as her son. Today, the mother is 36 years old. How old is the son today?
13.
The sum of the ages of a father and son is 44. Four years ago, the father was 8 times as old as the son. How old is the son now?
1. a)8
2. b)6
3. c)12
4. d)10
14.
Five years ago, a man was 4 times as old as his son. Five years from now, the man will be 2.5 times as old as his son. Find their current ages.
15.
The ratio of a mother's age to her daughter's age is 7:3. In 6 years, the ratio will be 5:3. Find their current ages.