Clock A runs from 09:00 to 10:00, and Clock B measures half the time Clock A measured. What was the time on clock B when clock A reached 10:00?

Here's a step-by-step solution for Question 3:

Part 3.1: What was the time on clock B when clock A reached 10:00?

Step 1: Determine the total duration Clock A runs and the time measured by Clock B in the first interval.
Clock A runs from 09:00 to 10:00, which is a total of 60 minutes.
The first observation period for Clock B is the first five minutes of Clock A (09:00 to 09:05).
During this period, Clock A measures 5 minutes.
Clock B measures half the time Clock A measured:

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