SPRIX MGHS

Front

A father is 32 years older than his son. If the son is 10 years old, how old is the father?

Back

Let the son's age be S=10S

The father is 32 years older, so his age is:

F=S+32

F=10+32=42

Answer: 42 years old

Front

Mary is twice as old as her sister Anna. If Anna is 7 years old, how old is Mary?

Back

Let Anna’s age be A=7

Mary is twice Anna's age:

M=2(7)=14

Answer: 14 years old

Front

The sum of the ages of two siblings is 24 years. If one of them is 10 years old, how old is the other?

Back

Let one sibling be S1=10

Total age sum: S1+S2=24

Solve for S₂​:

S₂=24−S₁

S₂=24−10=14

Answer: 14 years old

Front

A mother is four times as old as her son. If the mother is 36 years old, how old is the son?

Back

Front

The sum of a mother's and daughter’s age is 46 years. Four years ago, the mother was five times as old as the daughter. How old are they now?

Back