JEE Mathematics · Hard

Sequences and Series: Fibonacci-like MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Fibonacci-likeHardQuestion 210039

Question

In a sequence where each term is the sum of the two preceding terms and a₁ = 1, a₂ = 1, what is a₇?
  1. A
    8
  2. B
    13
    Correct
  3. C
    21
  4. D
    34

Correct answer

13

Explanation

This is the Fibonacci sequence: 1, 1, 2, 3, 5, 8, 13, 21, ... The 7th term is 13.