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?

Answer 1

From the given information, we can deduce that Tim spent a total of 50 + 30 + 30 = <<50+30+30=110>>110 minutes on his homework.
Since there are 60 minutes in an hour, 110 minutes is equal to 110/60 = <<110/60=1.83>>1.83 hours.
Therefore, Tim started doing his homework at 18:30 - 1.83 = 16:47. Answer: \boxed{16:47}.

Answer 2

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.

Answer 3

Tim spent a total of 50 + 30 = <<50+30=80>>80 minutes on his homework before taking a break.

He then spent an additional 30 minutes on his homework after the break.

Therefore, he spent a total of 80 + 30 = <<80+30=110>>110 minutes on his homework.

To convert this to hours, we divide 110 minutes by 60: 110 / 60 = 1.83333...

This means Tim spent approximately 1.83 hours on his homework.

If Tim completed his homework at 18:30, and he spent 1.83 hours on it, he must have started at 18:30 - 1.83 = 16:47.

Therefore, Tim started doing his homework at 16:47 using the 24-hour clock.