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What will be the next term in (81,75,69,63,\ldots)?

Answer and explanation

Correct answer: 57

Check the difference between consecutive terms: \(75-81=-6\), \(69-75=-6\), and \(63-69=-6\). Thus, this is an arithmetic progression with common difference \(-6\). Therefore, the next term is \(63-6=57\). Getting 60 would require subtracting 3, which does not follow the given common difference. Exam tip: For a next-term question, first find the difference between consecutive terms and apply it to the last term.

Related tags

Arithmetic ProgressionCommon DifferenceNext TermClass 10SequenceIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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