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Question
Remembering that 1AD came immediately after 1BC, while solving these problems take 1BC as –1 and 1AD as +1.
- The Greeco-Roman era, when Greece and Rome ruled Egypt started in the year 330 BC and ended in the year 395 AD. How long did this era last?
- Bhaskaracharya was born in the year 1114 AD and died in the year 1185 AD. What was his age when he died?
- Turks ruled Egypt in the year 1517 AD and Queen Nefertis ruled Egypt about 2900 years before the Turks ruled. In what year did she rule?
- Greek mathematician Archimedes lived between 287 BC and 212 BC and Aristotle lived between 380 BC and 322 BC. Who lived during an earlier period?
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Solution
Taking 1 BC as –1 and 1 AD as +1
a. Starting year = 330 BC = (–330) AD
Ending year = 395 AD
The era lasted for = 395 – (–330)
= 395 + 330
= 725 years
b. Born year = 1114 AD
Death year = 1185 AD
∴ Total age = 1185 – 1114 = 71 years
c. Turks ruled Egypt in 1517 AD
Queen Nefertis ruled Egypt in
(1517 – 2900) AD = –1383 AD or 1383 BC.
d. Archimedes lived between 287 BC and 212 BC
Aristotle lived between 380 BC and 322 BC
∴ Aristotle lived during an earlier period.
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Remembering that 1AD came immediately after 1BC, while solving these problems take 1BC as –1 and 1AD as +1.
Greek mathematician Archimedes lived between 287 BC and 212 BC and Aristotle lived between 380 BC and 322 BC. Who lived during an earlier period?
