Answer:
30
Step-by-step explanation:
Given that Trent's watch runs at half the speed it should run, this implies that
for every hour passed, his watch moves by half an hour.
Hence, for every half-hour passed, Trent's watch moves by 15 minutes.
Hence, when the real time is 10:30 am, Trent's watch will show 9:15 am.
7 2/3 + 8 5/6 = 16 1/2 ( or 32/2 )
30 minutes
Because it would take her an hour to go 8 miles and she is only going 4 so it is half an hour