Question

4. Father's age is 5 times of his son's age.
Ten years back, father's age was 13 times that of the son. What's father's age?​

Answer 1

Answer:

13*5

therfore x= 65

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Answer 2

Answer:

The father’s age is 5 times his son’s age. 10 years back, the age of the father will be 13 times his son’s age. The present ages, in years, of the son and the father are, 15 years and 75 years respectively

Step-by-step explanation:

Given:

Present age

Age of father = 5 × Age of Son

10 years ago,

Age of father = 13 × Age of son

Calculation:

Let the age of father and son be F and S.

According to the question,

F = 5S      ----(1)

Again according to the question,

⇒ (F - 10) = 13(S - 10)      ----(2)

After equating the equation (1) and equation (2)

⇒ 5S - 10 = 13S - 130

⇒ -8S = -120

⇒ S = 15 years

From equation (1)

⇒ F = 5 × 15

⇒ F = 75 years