Question

Robin's father's age is six times Robin's present age. Robin's age five years from now, will be one third of his father's present age. What are their present ages?​

Answer 1

Answer:

Robin's father's age now = x

Robin's age now = x/6

Robin's age after five years = x/6 + 5

So, we have:

x/6 + 5 = 1/3(x)

x/6 + 5 =  x/3

(x + 30)/6 = 2x/6

x + 30 = 2x

x = 30

So, Robin's father's present age = x = 30 years

Robin's present age = x/6 = 30/6 = 5 years