Question 11
A hybrid car with a 9.80 gal tank consumes gasoline at a rate of 54.1 miles/gal. How many liters of gasoline will be consumed traveling 132 km? (hint: please feel welcome to use a table of useful conversion factors).
The answer is ______ liters.
Answers
Given : A hybrid car with a 9.80 gal tank consumes gasoline at a rate of 54.1 miles/gal.
To find : How many liters of gasoline will be consumed traveling 132 km
Solution:
consumes gasoline at a rate of 54.1 miles/gal.
=> 1 mile = 1.61 km
=> consumes gasoline at a rate of 1.61 x 54.1 km /gal
=> consumes gasoline at a rate of 87.1 km /gal
in 87.1 km gasoline consumed = 1 gal
=> in 1 km gasoline consumed = 1 /87.1 gal
=> in 132 km gasoline consumed = 132 /87.1 gal
= 1.5155 gal
1 gal = 3.785 litre
liters of gasoline will be consumed traveling 132 km = 1.5155 x 3.785
= 5.736 litre
The answer is __5.736____ liters
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