2023 AMC 10 B

Complete problem set with solutions and individual problem pages

Problem 6 Easy

L _ { 1 } = 1 , L _ { 2 } = 3, and L _ { n + 2 } = L _ { n + 1 } + L _ { n } for n \geq 1 . How many terms in the sequence L _ { 1 }, L _ { 2 }, L _ { 3 }, \cdots , L _ { 2 0 2 3 } are even? (2023 AMC10B Q6)

  • A.

    673

  • B.

    1011

  • C.

    675

  • D.

    1010

  • E.

    674

Answer:E
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