Question

I am four times as old as my daughter. In 20 years time I shall be twice as old as her.

How old are we now?

Answer 1

Question :

I am four times as old as my daughter. in 20 years time I shall be twice as old as her .

how old are we now ?

Answer :

Let's assume that my daughter is 'x' yrs old then ur age will be '4x' .

after 20 yrs my daughter will be x + 20 yrs old and I'll be twice as her means '2 ( x + 20 ) '

So , ACCORDING TO QUESTION :-

⇁ 2 ( x + 20 ) = 4x + 20

⇁ 2x + 40 = 4x + 20

⇁ 40 - 20 = 4x - 2x

⇁ 20 = 2x

⇁ x = 10

THEREFORE ,

Daughter's age = 10 yrs

Mother's age = 40 yrs

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