(1) 1 January 2012 the district population was 89,500 of which 22.8 % urban and 77.2 % rural population .
(2) On 1 January 2012 , the district population was 89,500 , of which 22.8 % were urban and 77.2 % rural population .

Do these two sentences mean the same thing?

Options are: a). no. b). yes.
b).