Question 1038622
A+B+C+D+E=110
David is 19, Ashley is the oldest.
110/5=22, the mean.  That is Caroline
Brian is younger than Caroline, and he is the middle in the group.
Therefore,
D+E+B+C+A is the order
19+E+B+22+A=110
The median age must be less than 22. 
If I use integers, B must be 21, the median, and E must be 20. There are no other possibilities.  That makes Ashley's 28. 
D+E+B+C+A=19+20+21+22+28
If age can be expressed as a fraction, then B < 22 and 19<E<B, or 19<E<22
B and E could be as little as slightly greater than 19 each, with B more. That would make Ashley's slightly less than 31.
Alternatively, B and E could be slightly less than 22, with B greater than E.  That would make Ashley's slightly more than 25.