Multiple choice

A sequence begins with 1 and 1. Each subsequent term is found by adding the previous two terms. What is the seventh term of the sequence?

  1. 8

  2. 13

  3. 21

  4. 24

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B Correct answer
Explanation

The sequence follows the Fibonacci rule: 1, 1, 2, 3, 5, 8, 13. The seventh term is 13.

AI explanation

This sequence is generated by adding the two previous terms to find the next term, known as a Fibonacci-like sequence. Starting with 1 and 1, the subsequent terms are 2, 3, 5, and 8. The seventh term is found by adding the fifth and sixth terms, so 5 + 8 = 13.