You can put this solution on YOUR website! Bill is 80 years old
b = 80
His son max is 5/8 his age
m = *80
m = 50 yrs is Max age
His granddaughter Jayne is 1/5 of his age *80 = 16 yrs is Jayne's age
How many years older than Jayne is max?
50 - 16 = 34 yrs