The R's have been condemned to the Championship for the second time in three years after falling to the bottom of the table on the back of a run which has seen them win once in 11 outings.
Sergio Aguero scored a hat-trick and provided an assist as City ran riot at the Etihad Stadium with the other goals coming from Aleksandar Kolarov, James Milner and David Silva allowing the last season's champions to move three points clear of third-placed Arsenal who face Swansea City on Monday night.
Jordi Gomez's late-season renaissance continued with an assist for Danny Graham after last week's brace while Jermain Defoe scored with a fortunate deflection as Sunderland moved two points clear of the drop zone with a 2-0 home win over Sunderland.
Charlie Adam struck his fourth goal in his past six outings to open the scoring for Stoke City in their eventual 3-0 victory over ten-man Tottenham at the Britannia Stadium. Steven N'Zonzi and Mame Biram Diouf were also on target as Mark Hughes' Potters enhanced their chances of finishing in the top 10.
John Carver had something to smile about at his Newcastle side stopped a run of eight consecutive defeats with a 1-1 draw against West Bromwich Albion.
Elsewhere, Aston Villa edged West Ham United 1-0 thanks to Tom Cleverley's third goal in three games, Riyad Mahrez scored a brace as Leicester City made it six wins in seven with a 2-0 triumph over Southampton, Manchester United got the better of Crystal Palace with a 2-1 away result to almost secure a top-four finish while newly-crowned champions Chelsea were held to a 1-1 draw by Liverpool with captains John Terry and Steven Gerrard both heading home for their respective sides.
2014/15 Barclays Premier League - season scores
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