I guess I just read correctly into the question rather than interpreting it to literally. I guess sometimes it pays to have an open mind.
I'm coming around to the view this is a wind up. But just on the off-chance you really didn't know, bose-x, density altitude is pressure altitude corrected for non-standard temperature. Oh, BTW, density altitude is what we use in performance calculations ... so performance calculations require the input of pressure altitude ... oh, WTF
Indeed but the question was not around performance it was a pretty simple question that it seems had a typo in it. Thanks for the condescending lecture though.
I just applied logic to see around the typo it appears some were unable to.