What is the next term in (6,13,29,61,\ldots) if the rule is double the previous term and add (1)?
Answer and explanation
Correct answer: 123
Using the stated rule, double the last term 61 and add 1: \(2\times61+1=123\). Therefore, the next term is 123. Note that the earlier listed terms do not fully follow this rule, but applying the rule explicitly given in the question gives 123. Exam tip: When a rule is stated, apply it to the last given term to find the next term.
Frequently asked questions
What is the correct answer to this question?
123
Why is this the correct answer?
Using the stated rule, double the last term 61 and add 1: \(2\times61+1=123\). Therefore, the next term is 123. Note that the earlier listed terms do not fully follow this rule, but applying the rule explicitly given in the question gives 123. Exam tip: When a rule is stated, apply it to the last given term to find the next term.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Sequences.
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