求教GWD一道数学题（换算单位）

adasuying2004

Q37:
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average?  (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, both rounded to the nearest tenth.)

A.3.7
B.9.5
C.31.4
D.53.4
E.136.8
Answer: B

为什么我怎么算都是A。求高手！

shevit

这个题不应该错啊…………就看22.5m/g=(22.5/3.8)m/l   。so we can get (22.5/3.8)*1.6km/l.That is B