Question

The sum of the present ages of a father and his son is 80 years. When the

Answer 1

Answer:

Father=60

Son=20

Step-by-step explanation:

Let the father's age be x

Let the son age be y

Present age of them

X+y=80...(1)

Since the father's age equals to the present age of the son

Y+y=40

2y=40....(2)

Make y the subject of formula by dividing both sides by 2

Y=20

Substitute the value for x into (1)

20+x=80

Substrate 20 from both sides

X=60

Therefore the father's age is 60 and the son's age is 20