someone please help me .. my fuel gauge is not accurate and i need to know how many kilometers i can do on a full tank which is 25L
50922km was what it was on when I filled 18L of petrol. the next time I filled up the car it was at 51064km and I put 15 and a half liters..
so I figured out that I did 142km between those two times filling it up (51064km-50922km=142km) .. but I need to know how many kms for a FULL tank of petrol .. helppp!
ok, so assuming that you filled it completely when you put the $18L$, and you filled it completely when you put the $15.5L$, then that means that you spent a total of $15.5L$ (what you reloaded) to drive the difference, $142Km$. That means that on average you spent $142Km/15.5L=9.47$ Km per liter. So on average a liter drives you a little less than $9$ and a half kilometers, if you want to know how far that takes you, we multiply: $9.47*25=236.7 Km$.