Math, asked by poohmaru696, 4 days ago

9 years ago,grandfather age was 9 times his grandsons age at that time .after 15 years,his age will be thrice as the grandsons age. find the present age

Answers

Answered by shynigeorge75
0

Answer:

Grandsons present age =17

Grandfathers present age =81

Answered by dayanidhisharma19
3

Answer:

Grandfather and grandson's present age is 81 and 17 respectively.

Step-by-step explanation:

Let, grandfather's present age= x

Let, grandson's present age = y

Now according to the question,

x-9= 9(y-9)

⇒ x - 9y = -81+9

⇒x-9y= -72                 .(i)

And

x+15= 3(y+15)

⇒x-3y = 45-15

⇒ x-3y = 30              .(ii)

Solving (i) and (ii) we get ,

x= 81  ,  y= 17

Therefore, grandfather and grandson's present age is 81 and 17 respectively.

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