Question

the average age of three girl is 24 years and their agaes are in the ratio 3:4:5.the age ofthe oldest girl is​

Answer 1

Step-by-step explanation:

let there age be 3x,4x,5x

average age =3x+4x+5x/3

24=12x/3

24=4x

24/4=x

6=x

so age of oldest is 5x=30 yrs

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Answer 2

age of the girls are 18years, 24years and 30 years

therefore... the age of oldest girl is 30years!

for explanation refer to the attachment :)

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