posted by cc .
"If gas is $1.20 per gallon, how much would it cost to fill a 50-liter tank?"
using conversion factor.
1 L = 1.056 quarts.
4 quarts = 1 gallon.
Convert 50 L to gallons and multiply by 1.20/gallon.
Let me know if this is sufficient.
I think I got it. Thanks.