Question

in 4 years' time a baby will be 5 times as old as she is now. find her age

Answer 1

Let the age of the baby be x years at present.
Age of baby after 4 years = (x+4) years
According to question,
Age of baby after 4 years will be five times of her present age.
Therefore,
⇒x+4=5x
⇒4=5x-x
⇒4=4x
⇒x=1
Therefore,
Present age of baby is 1 years.


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Answer 2

let the present age of the baby be x.
age of the baby after 4 years = 4+x
according to the problem ,
                                5x = 4+x
                                 => 5x - x = 4
                                 => 4x = 4
                         therefore , x = 1
so the present age of the baby is 1 years.