probably 20-30 skipping cutscenes and tutorials, and 15-25 if you watch the cutscenes and tutorials.
the whole story should take about 35 hours (30> hours if you rush to get that achievement), multiplayer is endless, side missions are about 15< hours, and just plain old goofing around is endless. your really getting a giant bang for your buck on this game.
30-40 missions
25 missions
After that mission in GTA 4 there are 8 missions after that as there are 95 missions and that is number 87
I don't think you can in number 4.
only 22 missions on the lost and damned
105 missions
there was exactly 4
94 MissionsThere is actually 94 missions without taking into account the side missions.
4....
gta 4 is in liberty city acually
check gta4.net's garage.