Revisiting an old challenge (not that I'm the first)... 

5 x pull-ups
5 x dips
100 x squats
10 x pull-ups
10 x dips
75 x squats
15 x pull-ups
15 x dips
50 x squats
20 x pull-ups
20 x dips
25 x squats

11:02, though I took a different approximation than Dusty's (I broke the pull-ups and dips into smaller groups - you know 10s, then 5s, then 2s and 1s...).  I've gotta (a) get a pull-up bar at home or (b) [re]join a gym - pull-ups shouldn't be this hard.