Son is about to celebrate 10th
birthday . after 11 years his age
will be half the average of his
parents. his mother is 17 years
older to him. what is the age of
the father .

• 35 yrs
  
  Age of son now= 10 yrs ; age of son after 11 yrs = 21 yrs
  age of mother now= 10+17 = 27 yrs; age of mother after 11 yrs = 38 yrs
  
  If age of father after 11 yrs is F, then
  21 = (F+38)/4
  F= 46 yrs
  age of father now= 46-11= 35 yrs
• 11 years agoHelpfull: Yes(5) No(0)
• sons age on his 10th brthday=10years
  aftr 11 years his age=21
  age of mother after 11 years=10+17+11=38
  a/q "after 11 years his age
  will be half the average of his
  parents"
  
  therefore the equation becomes (38+x)/2=42
  so x=46(i.e after 11 years)
  
  and therefore the present age is 46-11=35years
• 11 years agoHelpfull: Yes(1) No(2)