The girl's age is twice that of boy, if the boy is four years old. After four years the age of the girl is

• let age of the boy is to be x,
  so girl age would be 2x...
  and that is given that boy is 4 years old so at that time girl age would be 8 years and after 4 years girls become 12. so age of the girl is 12.
  
• 9 years agoHelpfull: Yes(1) No(0)
• girl = 12 year
  boy = 8 year
  
  after four year
• 12 years agoHelpfull: Yes(0) No(3)
• My answer is 12
  Boy's age is 4
  Girl's age is 4*2=8
  After 4 years girls age will be 8+4=12
• 6 years agoHelpfull: Yes(0) No(0)