Answer: Rahul can finish his entire homework assignment in 5 hours.
Neha can complete her entire homework in 3.5 hours
Similarly, Riya can conclude her homework is 4 hours 40 minutes.
Therefore, they all started their work at 12 p.m. and took a 30-minute break around 3.30 p.m.
Neha can begin playing if she completes her schoolwork in 3 hours and 30 minutes.
12 p.m. + 3 hours 30 minutes = 3:30 p.m.
Rahul can start his play at 12 p.m. + 5 hours + 30 min break = 5:30 p.m.
Riya can begin playing at
12 p.m. + 4:40 p.m. + 30 min. break = 5:10 p.m.