# Find Number of Kilometers

• Oct 6th 2010, 06:07 AM
RTC1996
Find Number of Kilometers
If a car travels 36 miles per gallon of fuel (in other words the car does 36 mpg), how many kilometers does it travel per liter of fuel?
• Oct 6th 2010, 07:09 AM
masters
Quote:

Originally Posted by RTC1996
If a car travels 36 miles per gallon of fuel (in other words the car does 36 mpg), how many kilometers does it travel per liter of fuel?

Hi RTC1996,

$\frac{36\:mi}{1\:gal} \approx \frac{36 \times 1.6\:km}{1 \times3.8 \:l}\approx \frac{56.6\:km}{3.8\: l} \approx 15.2\: km/l$
• Oct 6th 2010, 01:14 PM
RTC1996
It is necessary to know about liter of fuel for cars or just conversion factors to answer such questions?
• Oct 6th 2010, 04:15 PM
mr fantastic
Quote:

Originally Posted by RTC1996
It is necessary to know about liter of fuel for cars or just conversion factors to answer such questions?

Well, if the data is in miles and gallons and the answer has to be in kilometres and litres, what do you think ...?!
• Oct 7th 2010, 03:52 AM
HallsofIvy
Quote:

Originally Posted by RTC1996
It is necessary to know about liter of fuel for cars or just conversion factors to answer such questions?

What do you mean by "know about liter of fuel for cars"? There are many things one could know about "liters" or about "fuel" that are not necessary for this particular problem.