Ans
Step-by-step explanation:
Let one full tank = x
Then by the given statement, Angelica started with x/2
Suppose she used half of that, then,
x/4. So that x/4 - x/2 = x/4
This implies that she travelled half the distance she would have, using a full tank.
Suppose her destination requires 3 full tanks, then she would stop three times for a refill.
