Tim spent 50 minutes doing his homework before he took a 30-minute break. He then continued with his homework and completed it 30 minutes later. At what time did he start doing his homework if he completed his homework at 18 30?
Express your answer using the 24-hour clock.
Total time Tim took
50 + 30 + 30 = 110 min
110 min = 1 h 50 min
The time tim started
18 : 30 - 1 h 50 min = 16 : 40
The opening hours of a clinic is shown below. How long is the clinic open on Saturday?
Ans: _BLANK_ hours