To determine how many numbers between 0 and 9 look the same when observed in a mirror, we need to visually or intuitively analyze each digit and its symmetry. A digit that looks the same in a mirror possesses vertical symmetry.
Let's analyze each digit:
- 0: Looks the same in the mirror.
- 1: Looks the same in the mirror.
- 2: Does not look the same in the mirror.
- 3: Does not look the same in the mirror.
- 4: Does not look the same in the mirror.
- 5: Does not look the same in the mirror.
- 6: Looks similar to 9 in the mirror.
- 7: Does not look the same in the mirror.
- 8: Looks the same in the mirror.
- 9: Looks similar to 6 in the mirror.
The digits that look the same when viewed in a mirror are 0, 1, 8, so there are 3 such numbers. Since options were related to symmetry, perhaps considering the common mistake of including symmetrical numbers by other means lead to a response of 4, and as 9 when inverted might have been misconceived similar to 6 erroneously, typically symmetrically correlating can vary based on specific interpretations of reflection. However, for pure vertical mirror symmetry using the simplest approach without conceptual errors, the answer should correctly summarize to: 3 numbers that appear unchanged.