Easy method of solving logical reasoning problem on ratio and ages.
Que. The ratio of age of a man and woman is 4:3 .After 4 years
ratio will be 9:7 .And before some years back ratio was 5:3
How many years before their age ratio were 5:3 ?
Ans. 4x+4/3x+4 =9/7
man’s age =4*8=32
let the reqiured time be y years