The ratio of the ages of a man and his wife is 4:3. After 4 years,the ratio will be 9:7.If at the time of marriage the ratio was 5:3,then how many years ago were they married ?

a) 8 b) 10 c) 12 d) 15

• let the present ages of the man and his wife be 4x and 3x
  
  then (4x+4)/(3x+4)= 9/7
  [since given that after four years their ages will be 9/7]
  
  by solving it we have x=8
  
  so their present ages are 32 and 24 respectively
  
  now suppose if they were married X years ago,
  
  then (32-X)/(24-X)=5/3
  
  by solving it we have 2X=24
  so X=12
  
  so they were married 12 years ago
  
• 12 years agoHelpfull: Yes(8) No(1)