Question

15 years hence, Rahit will just he just four times as old as he was 15 years ago, How old is Rohit at present!?​

Answer 1

GIVEN :-

• 15 years hence, Rohit will be just four times as old as he was 15 years ago.

TO FIND :-

• Rohit's present age.

SOLUTION :-

Let present age of Rohit be 'x' years.

Age of Rohit ,

• 15 years hence = (x+15)yrs
• 15 years ago = (x-15)yrs

According to question,

15 years hence, Rohit will be just four times as old as he was 15 years ago.

♦ Rohit of age 15years hence is equal to 4 times his age 15 years ago.

We will make an equation by the data.

→ x + 15 = 4(x - 15)

→ x + 15 = 4x - 60

→ x - 4x = -60 - 15

→ -3x = -75

→ x = -75/-3

→ x = 25 years

Hence , present age of Rohit is 25years.

LETS CHECK !

♦ Age of Rohit 15 years hence,

= 25 + 15

= 40 years

♦ Age of Rohit 15 years ago,

= 25 - 15

= 10 years

So, 4 times of 15yrs ago age is equal to 15 yrs later age.

4(10) = 40

40 = 40 (verified)