Question

Aleka is now 12 years old and ravina is 24 years old how many years ago was ravina 3 times older the aleka. with statement

Answer 1

aleka is. 12 years old
ravina is 24 years old
finding HCF of 12 and 24
after 24 years

Answer 2

Aleka is now 12 years old and ravina is 24 years old
 we should find how many years ago was ravina 3 times older the aleka
let aleka be x and ravina be y 
first we should see the factors  of 12 and 24 =2,3,4,6,12
lets see h.c.f=12
but it cant be 12 then aleka will become 0 [12-12=0]
so the next highest factor is 6 
 
so 6 years ago , ravina was  3 times older the aleka