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What is the next term of (2,3,5,8,13,\ldots)?

Answer and explanation

Correct answer: 21

From the third term onward, each term is the sum of the two immediately preceding terms: \(2+3=5\), \(3+5=8\), and \(5+8=13\). Therefore, the next term is \(8+13=21\). Option 20 is not correct because it is not the sum of the previous two terms. Exam tip: When finding a sequence rule, check sums of earlier terms as well as differences between consecutive terms.

Related tags

SequencesNumber PatternsNext TermFibonacci-Type SequenceMathematics Class 9Sequences And ProgressionsMathematicsClass 9 Mcq

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