1.

The ages of rahul and laxmi are in the ratio 5:7. four years later the sum of their ages will be 56 year. what is their present age.?

Answer»

Let the age of rahul be 5X YRS
let the age of laxmi be 7x yrs
four yrs later
the age of rahul 5x+4
the age of laxmi 7x+4
sum of their ages=56
(5x+4)+(7x+4)=56
12x+8=56
12x=56-8=48
x=48÷12
=4

the age of rahul =7x=7×4=28
the age of laxmi=5×=5×4=20

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