Three types of aircraft fly three different routes which lengths are related as 1:3:5. The ratio of the amount of fuel burnt over these routes in the same respective order is 5:3:1. What are the ratios of their respective fuel consumption in units of distance per one unit of fuel burnt?
-
A1:1:1
-
B1:3:5
-
C1:5:25
-
D5:3:1
-
E3:4:3
显示答案
正确答案: C