A cumulative frequency table for test scores (out of 100) shows:

| Score Interval | 0–20 | 0–40 | 0–60 | 0–80 | 0–100 | |---|---|---|---|---|---| | Cumulative Frequency | 8 | 24 | 50 | 68 | 80 |

To find the 60th percentile, the position is $L = \frac{60}{100} \times 80 = 48$. In which score interval does the 48th observation fall?