@Barney
Yes the A330 fleet. Sorry forgot to mention! Thanks though for clearing it up.
@Everyone about the Kunming descent question.
If both are 50% less (i.e. the deceleration and descent) then isn't simpler to divide the initial answer of 114nm by 2? Rather than go through
1.5x33=49.5nm which is the distance now travelled for 33,000ft descent. The aircraft now only needs 7.5nm to slow down before reaching Kunming, so now it is 49.5+7.5=57nm