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Which sequence has common difference (7)?

Answer and explanation

Correct answer: \((5,12,19,26,\ldots)\)

In option A, the difference between consecutive terms is constant: \(12-5=7\), \(19-12=7\), and \(26-19=7\). Therefore, its common difference is \(d=7\). Option B has common difference \(5\), whereas option C has common difference \(-7\). Exam tip: Subtract the first term from the second term, then verify with the next pair of terms.

Related tags

Arithmetic ProgressionCommon DifferenceIdentify ApClass 10 MathematicsSequencesIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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