A boy is born when his father is 27 years old. How old will he be when he is exactly half his fathers' age?

(a) 23
(b) 24
(c) 39
(d) 27

• when son born:
  son s=0
  father f=27.
  after x years:
  son s=x
  father f=f+x=27+x:
  according to given condition
  son age is exactly half his fathers' age...so
  x=(27+x)/2---solve this
  son age is 27
  
• 8 years agoHelpfull: Yes(13) No(0)
• after 27 years sons age is 27 years and fathers age is 54
• 8 years agoHelpfull: Yes(6) No(2)
• let fathers age =2x sons age is x
  let sons age is 0 and fathers age is 27 at the time of sons birth
  so 27-0=2x-x
  x=27 and his fathers age = 54
• 8 years agoHelpfull: Yes(5) No(0)
• D) his father will be 54 .. He will be 27../half. Of his father's age.
• 8 years agoHelpfull: Yes(1) No(0)
• the son would be 27 yrs and half of 54
• 8 years agoHelpfull: Yes(1) No(0)
• boy 0 father 27
  .
  .
  
  .
  .
  .
  x = (27+x)/2
  x=27
  
• 8 years agoHelpfull: Yes(0) No(0)