How many kilograms of gasoline fill a 13.6- gal gas tank?

Question

I just need to know the set up like the conversions I suppose.

Answer 1

The conversion factor that I would use is 1gallon of gasoline weighs 2.83 kg (https://www.aqua-calc.com/calculate/volume-to-weight). Thus,

2.83 kg/gal x 13.6 gal = 38.5 kg

 

It would be of interest to know where the previous answer got the value of 1 kg = 0.26 gal. Which is equivalent to 3.8 kg = 1 gallon. 

Answer 2

13.6- gal gas tank  

 

This (above) is the given.  Begin with the given:

 

13.6- gal gas tank  x  (1 kg/ 0.26 gal) = 52.3 kg