Question

A man is 42 years old and his son is 12 years
old. In how many years will the age of the son
be half the age of the man at that time?
​

Answer 1

Given:-

• A man is 42 years old and his son is 12 years old.

To find:-

• Years will the age of the son be half the age of the man at that time.

Solution:-

Here,

• Man's age = 42 years
• Son's age = 12 years

Let,

• years age of the son will be half the age of the man be x.

After "x" years,

→ Man's age = (42 + x) years

→ Son's age = (12 + x) years

According to the question,

→ 12 + x = 42 + x/2

→ 2(12 + x) = 42 + x

→ 24 + 2x = 42 + x

→ 2x - x = 42 - 24

→ x = 18

Hence,

• after 18 years, the age of the son will be half the age of the man.

Answer 2

Answer:

On behalf of the the age at that time

Step-by-step explanation:

42 years ;42 ÷2 = 21

Son -12 years ;12÷2= 6 years