<PRE><B>Question 317924</B>
a car driving at 55 miles per hour. The car give you 11 kilometers in 
one liter of gas. How much gas we need to cover a trip for three hours
-----------------
55 mph = 55*1.6 = 88 kph
----
liters of gas = [88 kph/11 km] = 8 liters
=====================================
Cheers,
Stan H.
=================</PRE>