The average ages of three persons is 27 years. Their ages are in the proportion of 1:3:5.What is the age in years of the youngest one among them.

• average age of three = 27
  total age of three = 27*3= 81
  let age of one person is x
  then age in proportion is = x:3x:5x
  then,
  x+3x+5x = 81
  9x = 81
  x = 81/9
  x = 9
  then, age proportion will be x:3x:5x = 9:3*9:5*9
  then age ratio = 9:27:45
  the age of younger = x = 9 years
• 5 years agoHelpfull: Yes(1) No(0)
• 9
  apply the average formula and then calculate the value of the youngest
  
  
• 9 years agoHelpfull: Yes(0) No(1)
• the averege ages of three persons=( x+3x+5x/3),(9x/3)
  (9x/3=27) ,(9x=81)(,x=9),
  ans is 9 year
  
  
• 9 years agoHelpfull: Yes(0) No(0)