AMC 8 Daily Practice - The Rule of Arithmetic Sequences
Complete problem set with solutions and individual problem pages
Problem 1 Easy
Halley's Comet has been observed passing by Earth in the years , and . Based on the pattern, when might it return in this century?
- A.
- B.
- C.
- D.
- E.
Answer:D
Observing the years forms an arithmetic sequence with the first term and a common difference .
The next return year would be:
Final result:
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