Question

After 10 years, Rohan's age will be twice that of Sohan's age10 years ago. If Rohan is 9 years older than Sohan now, what is Sohan's present age ?

Answer 1

Answer:39

x= x+9

(x-10)2=(x+19)

2x-20=x+19

2x-x=+19+20

x=39

Step-by-step explanation:

Answer 2

Sohan's present age is 19 years.

Given:

After 10 years, Rohan's age will be twice that of Sohan's age10 years ago. If Rohan is 9 years older than Sohan.

To Find:

The Sohan's present age.

Solution:

To find the Sohan's present age we will follow the following steps:

As we know,

Let the sohan's present age = x

Now, according to the question-

Sohan's age 10 years ago = x - 10

Rohan's age after 10 years = 2 × Sohan's age 10 years ago.

So,

Rohan's age after 10 years = 2 × (x - 10).

Rohan is 9 years older than sohan so, the difference between their ages will be 9.

Now,

2 × (x - 10) - (x - 10) = 9

2x - 20 - x + 10 = 9

x - 10 = 9

x = 19 years

Henceforth Sohan's present age is 19 years.

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