# What will be the age of Jais and his father after 12 years from now?

Jais and his father has an age difference of 35 years now. After 5 years, the sum of their age is 125. What will be the age of Jais and his father after 12 years from now?

- 40 & 75
- 45 & 70
- 51 & 85
- 52 & 87

**Answer: (4) 52 & 87**

**Explanation:-**

Let the present age of Jais be X years and the age of his father be Y years.

Jais and his father has an age difference of 35 years now.

Then, Y – X = 35 …………………. (1)

After 5 years, the sum of their age is 125.

(X + 5) + (Y + 5) = 125

X + Y + 10 = 125

X + Y = 125 – 10

X + Y = 115 ………………………… (2)

Add equation (1) & (2),

Y – X + X + Y = 35 + 115

2 Y = 150

Y = 150/2

Y = 75 years

Now, put the value of Y = 75 in equation (2),

Then, X + 75 = 115

X = 115 – 75

X = 40 years

So, the age of Jais after 12 years = 40 + 12 = 52 years and the age of his father after 12 years = 75 + 12 = 87 years.

Hence, the correct answer is option (4) 52, 87.