12x6x3 = ~240 miles.

來源: 2012-09-24 09:39:26 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

12 miles x 6 days x 3 weeks = ~240 miles / 3 wks.

 

$50 / 4 = $12 gallon / 3 wks.

 

so the gas mileage is 20 miles / gallon. Not too bad. You might want to do a tune-up or oil change.