Lainey is 5 years old than her sister,mary. In 2 years she will be twice as old as her. What is their ages.

• let lainey's age is L and her sister's age is S.
  here L=S+5.
  after two years lainey's age will be L+2 and her sister's age will be S+2.
  now L+2=2*(S+2).
  => L+2=2S+4
  => (S+5)+2=2S+4
  => S=3
  now L=3+5=8
  Lainey's age is 8 and her sister's age is 3.
• 8 years agoHelpfull: Yes(0) No(0)