15. The ratio of the age of a gentleman and his wife is 4 : 3. After 4 years this ratio will be 9 : 7. If at the time of their marriage the ratio was 5 : 3, how many years ago they were married?
(a) 10 years
(b) 8 years
(c) 12 years
(d) 15 years

• Let the present age of gentleman (G) and wife (W) be 4x and 3x resp....
  thus after 4 yrs the ratio will be (4x+4)/(3x+4)=9:7..
  on solving we get the value as x=8..i.e present ages are G=32,W=24...
  Now at the time of marriage the ratio will be :
  (32-y)/(24-y)=5:3
  on solving we get y=12...
  Thus 12 yrs ago they got married.
• 9 years agoHelpfull: Yes(26) No(0)
• plz sumone solve this
• 9 years agoHelpfull: Yes(1) No(1)
• g/w=4/3
  (g+4)/(w+4)=9/7
  (g-m)/(w-m)=5/3
  g = 32, m = 12, w = 24
  They were married 12 years ago when she was 12 years old and he was 20 years old!
  32/24=4*8/3*8=4/3
  36/28=9*4/7*4=9/7
  20/12=5*4/3*4=5/3
• 9 years agoHelpfull: Yes(1) No(1)
• let the ratio is of x
  after 4 years ; (4x+4)/(3x+4)=9/7
  before y years ; (4x-y)/(3x-y)=5/3
  by solving we get y= 12 years
• 8 years agoHelpfull: Yes(1) No(0)
• after 4 years: (4x+4/3x+4)=9/7 ----> 28x+28=27x+36 -----> x=8 and
  thier ages are 4*8=32 and 3*8=24
  (32-x)/(24-x)=5/3 ----> 2x=24 --->x=12
  ans=12 years
• 7 years agoHelpfull: Yes(1) No(0)
• 12 year ago
• 9 years agoHelpfull: Yes(0) No(0)
• 12 years ago
  
  
• 9 years agoHelpfull: Yes(0) No(0)
• (c).12
  just solve as per the que.
• 6 years agoHelpfull: Yes(0) No(2)
• 4x+4/3x+4=9/7
  x=8
  4x=32 : 5x=40
  40-32=8years
• 5 years agoHelpfull: Yes(0) No(0)