Here is the schedule of Jim’s class time on a particular day.

8:20 am, am, 10:00 am, 10:50 am, 11:40 am

(1) Fill in the blank with the time pattern.

(2) It’s half past ten now; how long does Jim have to take a break before the next class? min.

(3) What’s the time when the morning classes end? pm.

(1) The interval is 50 minutes so the missing time must be: 8:20 am + 50 minutes = 9:10 am.

(2) Half past ten: 10:30 am

Next class: 10:50 am

Time left: 20 minutes

So the answer is 20.

(3) The interval is 50 minutes.

Last class: 11:40 am

Time of the classes end: 11:40 am + 50 minutes = 12:30 pm

So the answer is 12:30 pm.