In this question, you are asked to do rounding. The number will be rounded up if 1 digit below them is having value 5 or more. The number will be rounded down instead if 1 digit below it was 4 or less. In this case, you need to round up to nearest liters which mean the nearest one. The number is 103.468.
One digit below one will be the 0.4. Since the value is 4, which was lower than 5, then the number is rounded down. So the answer would be 103.