How old will Green be 10 years from now?
Let y1,y2......be the indefinite years. Let "t" be the year blue was born, "j" green and m yellow. Let y be the current year.
y-8-m=1/2(y2-j)=1-y3-ty3-m=5(y+2-t)..............(1)
y+10-t=2(y1-j)y1-m=9(y1-t).................(2)
t+1-m=3+y4-ty4-j=3(y5-6-m)
y5-j=1/2(y6-t)y6-m=10+y7-my7-j=1/3(y8-t)y8-m=3(j-m)
t=y-3j=y-8m=y-15
Therefore, green=8years
blue= 3years
yellow = 15 years