Question

Mohan's father present age is 3 times Mohan's age. Mohan grandfather's age is 13 year more than the sum of Mohan's age and Mohan's father age .How do you find Mohan's grandfather age, if Mohan age is 'y' years ?​

Answer 1

Given

Mohan's age = y years.

Mohan's father's present age = 3 times Mohan's age.

Mohan's grandfather's present age = 13 year more than sum of ages of Mohan and his father.

To find

Present age of Mohan's grandfather.

Solution

Here given that, present age of Mohan = y years.

As per condition, Present age of Mohan's father :

➙ Mohan's father's age = 3 × y

➙ Mohan's father's age = 3y years.

Now as per the given condition, Mohan's grandfather's age is sum of ages of Mohan and his father.

Finding age of grandfather :

➻ Age of grandfather = 13 + (y + 3y)

➻ Age of grandfather = 13 + 4y

➻ Age of grandfather = (4y + 13) years.

Therefore,

Age of Mohan's grandfather = (4y + 13) years.

Answer 2

Solutions:

Let the present age of Mohan = y years.

Thus,

present age of mohan's father.

•mohan's father's age = 3y

Now, mohan's grand father's age is sum of ages of Mohan and his father.

Find the age of grandfather's

age of grandfather's = 13 + (y + 3y)

= 13 + 4y.

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