Your destination is 90 miles away, and your fuel gauge shows that your gas tank is one-quarter full. Your tank holds 12 gallons of gas, and your car averages about 25 miles per gallon. Do you need to stop for gas?
Yes, you do need to stop for gas. A quarter of 12 gallons would equal 3 gallons. If one gallon can take you 25 miles, 3 gallons will take you 75 miles. If you need to drive for 90 miles, you don't have enough gas.
