Question

The ratio of the present ages of a boy and a girl is 5 : 4 ..4 years back the boy was 24 years old what will be the age of the girl after 5 years later?Plz answer step by step.

Answer 1

Answer: The age of the girl after 5 years will be 27.4 years.

Step-by-step explanation:

Given that,

The ratio of the present ages of a boy and a girl= 5:4

Let the present ages of the boy and the girl are 5x and 4x respectively.

4 years back, the age of the boy= 5x-4

Now,

5x-4= 24  ( because the age of the boy, 4 years back, is 24 years.)

5x= 24+4= 28

x= 28/5

=> the present age of the girl= 4x= 4*28/5= 22.4 years

Therefore, the age of the girl after 5 years= 22.4+5=27.4 years

Answer 2

Answer:

27.4 years old

Step-by-step explanation:

Let 5x be the present age of boy and 4x be the present age of girl

4 years back boy age was 5x-4

4 years back he was 24 years old.

comparing both ,

5x-4= 24

5x=28

x=28/5

Boy present age is 5x= 5x28/5= 28 years

girl present age is 4x= 4x28/5= 22.4 years

Age of girl after 5 years shall be = 22.4+5= 27.4 years

27 years and 5 months (approx. value)