Question 744536
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A certain automobile {{{highlight(cross(average))}}} <U>averages</U> 18 kilometers per liter on the highway. 
how many liters of gasoline are required to complete a 450 kilometer trip?
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<pre>
                               Distance              450
    liters of gasoline = ----------------------- = ------- = 25 liters.    <U>ANSWER</U>
                           kilometers per liter       18 
</pre>

Solved.