From the fogures I gave you, you CANNOT extrapolate the numbers of MPs who went to Public School AND Oxbridge. That data simply isn't there.
Unless you have a fertile imagination...
You can tell that from those two sets of separate figures? What a fertile imagination you have.
The original point being made has been held as correct - the majority of Tory MPs went to Public School.
Percentage of Tory MPs who went to Public School - 54.2%
Percentage of Labour MPs who went to Public School - 14.0%
In both cases, the lowest figure ever.
Percentage of Tory MPs who went to Oxbridge - 34.0% (Lowest ever figure)
Percentage of Labour MPs who went to Oxbridge - 17.4%