Question

The sum of John and Dave's ages is 63. Dave is is six years less then twice Johns

age. How old is Dave?

Answer 1

The present age of Dave is 40 years

Explanation:

Let the present age of Johns be x

We are given that Dave is six years less then twice Johns age.

Dave's present age = 2x-6

We are also given that The sum of John and Dave's ages is 63.

So,
`x+2x-6=63`

`3x-6=63`

`3x=63+6`

`3x=69`

`x=(69)/(3)`

`x=23`

Dave's present age = 2x-6=2(23)-6=40

Hence The present age of Dave is 40 years