A present age of a person is one-third of the age of his mother. After 16 years, he will be one-half of the age of his mother. How old is the mother at present?
[A] 54 [B] 48 [C] 64 [D] 32

• X
  X/3
  
  
  x+16=1/2(x+16-x/3)
  2x=96
  X=48
• 5 years agoHelpfull: Yes(2) No(0)
• person=x
  mother=y
  x=(1/3)y
  
  x+16=1/2(y+16)
  1/3y+16=1/2(y+16)
  2/3y+32=y+16
  2y+96=3y+48
  y=96-48
  y=48
• 4 years agoHelpfull: Yes(0) No(0)