0.6/2=0.3(米)
3.14*0.3*0.3*0.4
=3.14*0.036
=0.11304(立方米)
0.11304立方米=113.04立方分米=113.04升
113.04*0.75=84.78(千克)
答:桶里的汽油84.78千克.