Four years ago did was 14yrs old. Her brother was thrice her age. What will be their total age in n years.

56+2n years

To find their total age in n years, we need to know the current value of n. Once we have that, we can calculate their ages.

Let's assume the current age of Four years ago was y years. If she was 14 four years ago, then we can represent her current age as (y + 4).

According to the information given, her brother was thrice her age four years ago, so we can represent his current age as 3(y + 4).

To find their total age in n years, we need to add their current ages to n.

So, the total age in n years would be:

(y + 4) + 3(y + 4) + n

Simplifying this expression, we get:

4y + 16 + n

Therefore, their total age in n years is 4y + 16 + n, where y represents the current age of Four years ago.