Question

The age of the thrine of his son. If the sum of their ages is 48 yr. what is the age of father?
1. 30 yr
2. 32 yr
3. 36 yr
4. 40 yr​

Answer 1

Answer:

let's take father as X and son as Y.

X=3Y

X+Y=48

3Y+Y=48

4Y=48

Y=12

and,

X=3Y

X=3*12

X= 36

the age of father is 36

Answer 2

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Father's age is 36 years.

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$\sf \huge \fbox {\underline{\underline{\purple{Solution : }}}}$

Let the age of his father be ‘x' years

Let the age of his son be ‘y' years

Father is thrice of his son x = 3y

Some of their ages is 48

x + y = 48

.

Substituting the value of x as 3y

3y + y = 48

4y = 48

y =$\dfrac{ 48}{4}$ =12

x = 3y

x = 3 × 12 = 36

Therefore, Son's age is 12 years & father's age is 36 years.