Question

father is 20 years older than his son, lf the sum of their age is 40 years. find their ages​

Answer 1

Answer:

Father = 30 years

Son = 10 years

Step-by-step explanation:

Q. Father is 20 years older than son, sum of their ages is 40 years, so what are the ages of them.

Solution -

If we consider son's age as x

so father's age will be x + 20

sum of both ages = 40

=> x + x + 20 = 40

=> 2x + 20 = 40

=> 2x = 40-20

=> 2×x = 20

=> x = 20÷2

=> x = 10

Hence son's age = x = 10 years

Father's age = x + 20 = 10+20 = 30 years

hope it helps.

Answer 2

Answer:

Father: 30

Son: 10

Step-by-step explanation:

Equation:

If the son's age is y, then,

y + (y + 20) = 40

2y + 20 = 40

2y = 40 - 20

2y = 20

y = 20 / 2

y = 10

So the son's age is 10.

If the son's age is 10, then,

10 + 20

= 30

Hence the father's age is 30.