Question 254097
Let the age of Vincent = x.
Then the age of John Paul = x-10
Five years ago,Vincent's age was twice that of John Paul.
                 x-5 = 2(x-15)
                 x-5 = 2x-30
                 x-2x= -30+5
                  -x = -25
                   x = 25
At present, the age of Vincent = 25.
And the age of John Paul = x-10 = 25-10 = 15