回复：21.58 mpg

1 gallon = 3.78 liter, 10.9 liter = 2.88 gallon
1 mile = 1.6 公里 100 公里 = 62.5 mile
62.5 mile/2.88 gallon = 21.7 mile/gallon

所有跟帖： 

• 回复：回复：21.58 mpg -carjack- ♂ (168 bytes) () 11/18/2007 postreply 11:38:32

• 你的公式可能更为精确 -xhz3- ♂ (72 bytes) () 11/18/2007 postreply 12:22:11

• Our numbers are very close, good enough. Take care! -carjack- ♂ (0 bytes) () 11/18/2007 postreply 12:58:51