Answer:
3:20 p.m.
Explanation:
We have been given that Yasmin arrived home from play practice at 4:25 p.m.
The the walk home took 15 minutes. The practice began 20 minutes after the final bell and lasted for a half hour.
Total time taken in all activities would be
![\text{(15+20+30) minutes}](https://img.qammunity.org/2019/formulas/mathematics/college/31vzkos0wx2pmnmxux9licn7f9a8cm5nu4.png)
![\text{65 minutes}](https://img.qammunity.org/2019/formulas/mathematics/college/q4d5l94r9habjq0gy26b3870ro831nc89h.png)
We need to subtract 1 hour and 5 minutes from 4:25 p.m.
1 hour before, 4:25 p.m. would be 3:25 p.m.
5 minutes before 3:25 p.m. would be 3:20 p.m.
Therefore, the school ended at 3:20 p.m.