Problema Solution
Five times Greggy's age is 10 more than his grandfather's age. If the sum of their ages is 86, what is grandfather's age?
Answer provided by our tutors
let 'x' represent his Greggy's age, then '5x-10' represents his grandfather's age
86 = x + 5x-10
96 = 6x
x = 16
5*16 - 10 = 70
his grandfather is 70 years old