alleryThe Egyptian sundial and water clock of about 1500 BC split their time of use into how many hours each?
A6
B10
C24
D12
Answer & Solution
Correct answer: D. 12
1. An Egyptian sundial served the day and a water clock served the night.
2. Each divided its period of use into 12 hours.
3. Six, ten and 24 do not match the 12-hour pattern of those clocks.
_Source: Wikipedia, 12-hour clock, History and use_
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