下表显示了电影院放映电影 XYZ 的时间表。

1. Identify the start time of the last screening

From the table, the last screening starts at $10.30\text{ p.m.}$

2. Add the duration to the start time

$10.30\text{ p.m.} + 2\text{ h } 10\text{ mins} = 12.40\text{ a.m.}$ (the next day)

3. Convert the end time to the 24-hour clock format

$12.40\text{ a.m.}$ in 24-hour clock is $0040$.

1. Identify the time of the next screening

Wendy arrives at $11.45\text{ a.m.}$ The next available screening from the table is at $2.30\text{ p.m.}$

2. Calculate the waiting time

Time from $11.45\text{ a.m.}$ to $12.00\text{ p.m.}$ is $15\text{ mins}$.
Time from $12.00\text{ p.m.}$ to $2.30\text{ p.m.}$ is $2\text{ h } 30\text{ mins}$.
Total waiting time = $2\text{ h } 30\text{ mins} + 15\text{ mins} = 2\text{ h } 45\text{ mins}$.