Question

Ravi's father present age is four times of Ravi's present age . Ravi age 9 year from now will be half of his father's present age . what are there present age​

Answer 1

Answer:

Let the present age of Ravi be x.

Then his father's age is 4x.

After 10 years ( in future )

Ravi age will be x + 4 years.

Fathers age is 4x + 10 years.

But questions says after 10 years,

Ravi's father age = 3( Ravi's age )

4x + 10 = 3( x + 10 )

4x - 3x = 30 - 10

x ( Ravi's age ) = 20 years.

Then his father age = 20 × 4 = 80 years.

Hence, Ravi age 20 years and his father's age is 80 years.

Step-by-step explanation:

Answer 2

Answer:

Age Of Ravi = 7 Years

Age Of Ravi's Father = 28 Years

Step-by-step explanation:

Let Ravi's Age Be x

So Ravi's Father's Age Be 4x

So There Present Age => x = 4x           ------------------(i)

After 9 Years, Ravi's Age = 1/2x

And After 9 Years, Ravi's Father's Age = x     ----------------(ii)

Adding (i) And (ii)

=>x + 1/2x = 4x + x

=>x + 1/2x = 5x

=>1/2x = 5x - x

=>1/2x = 4x

=>x = 4x × 2

=>x = 8x

=>0 = 8x - x

=>0 = 7x

=>x = 7

So, Present Age Of Ravi => x =7

And Present Age Of Ravi's Father => 4x = 4 × 7 => 28

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