Question 965112
x = dad's age
y = James's age
z = Sara's age


x = 5y = 10z
y = 2z


(x + 2) + (y + 2) + (z + 2) = 58
x + y + z = 52
10z + 2z + z = 52
13z = 52
z = 4


James's age = y = 2z = 8