Quantitative Aptitude : Ratio Problem, Ratio problem on ages, shortcut easy implementation.

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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
x=8
man’s age =4*8=32
woman’s age=3*8=24
let the reqiured time be y years
32-y/24-y =5/3
y=12 years…

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