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 ?
Pick:
A) 8
B) 10
C) 12
D) 14
E) 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   ANSWER:12
<result>C</result>
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 ?