Question

The average age of three girls is 24 years if thier ages are in the ratio of 5:6:7.find the age of the youngest girl​

Answer 1

3:5:7 

3*25=75 total age of the 3 boys.

3+5+7=15

75/15=5 multiplier for each of the factors 3,5 & 7

3*5=3*5=15 age of the youngest girl.

Answer 2

Answer:

let the ratio's =  X  

according to question,

(6x +5x + 7x) / 3 = 24

18x = 72

X = 4

Age of all three girl  

20,24 and 28

Age of younger girl  = 20years

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