Question

Ansh is 8 years younger than Ryan, Ryan is three times as old as David, David is x years old. How old are they?

Answer 1

a) David is `x` years old.
b) Ryan is `3x` years old.
c) Ansh is `3x - 8` years old.

Explanation:

We can use the variables `A` for the age of Ansh, `R` for the age of Ryan and `D` for the age of David.

We know:

1) `A = R - 8`
2) `R = 3D`
3) `D = x`

Substituting equation 3) for the `D` in equation 2) we get:
4) `R = 3x`

And substituting equation 4) for the `R` in equation 1) we get:
5) `A = 3x - 8`

Therefore the ages of the 3 state in terms of `x` are:
a) David is `x` years old.
b) Ryan is `3x` years old.
c) Ansh is `3x - 8` years old.