Question

Social Studies Application:Remembering that 1 AD came immediately after 1 BC: while solving following problems take 1 BC as -1 and 1 AD as +1
Turks ruled Egypt in the year 1517 AD and Queen Nefertiti ruled Egypt about 2900 years, before the Turks ruled. In which year did she rule?

Answer 1

Year in which Queen Nefertiti ruled = Year in which Turks ruled - 2900 yr
= (1517 AD) - 2900

For any two positive numbers, subtracting the larger from the smaller means, taking the negative of the smaller subtracted from the larger.
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(x-y) = -(y-x)
= (+ 1517) - 2900 = - (2900 - 1517) [ as (x-y) = -(y-x)]
= -1383 = 1383 BC
Hence, Queen Nefertiti ruled in the year 1383 BC.
$\left[1mark\right]$