Question

The age of the father is 7 times the age of the son. After 10 years, the age of the father will be 3 times the age of the son. So what is the current age of the son? ​

Answer 1

Step-by-step explanation:

ANSWER

Let Father's age be F and Son's age be S

then 5 years ago,

F−5=7(S−5)

F=7S−30

5 years hence,

F+5=3(S+5)

F=3S+10

Thus, 7S−30=3S+10

4S=40 or S=10

and, F=40 years

Father's age is 40 years

Answer 2

Answer:

Son's age = 5 years

Father's age = (5*7) years = 35 years

Step-by-step explanation:

Let the son's age be x yrs.

Father's age = 7x

After 10 yrs,

Son's age = x+10

Father's age = 7x+10

Value of x = 7x+10 = 3(x+10)

= 7x+10 = 3x+30

= 7x-3x = 30-10

= 4x = 20

= x = 5 yrs

Hope this helps.