Sir Saul was the sole survivor of the siege. There were between 1000 and 5000 knights at the start, but each day, two-thirds of the remaining knights fell or fled. Yesterday Saul lost his final 2 fellow knights. The siege started how many days ago?

A.
70
B.
14
C.
7
D.
6
Mathematics
Competition
Math League
Exam No:2021 First Round Grade 7 Year:2021 Question No:33

Answer:

C

Knowledge points:

G7 - Algebra - Arithmetic Sequences (Sum & Terms)

Solution:

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