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Which of the following sequences has common difference (7)?

Answer and explanation

Correct answer: (2, 9, 16, 23, \ldots)

In option B, the differences between consecutive terms are equal: 9−2=7, 16−9=7, and 23−16=7. Therefore, its common difference is 7. Option A has a common difference of 5, while the consecutive differences in options C and D are not equal. Exam tip: subtract each term from the next one; in an AP, the difference must remain constant.

Related tags

Arithmetic ProgressionsCommon DifferenceSequence IdentificationClass 10Introduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)Arithmetic Progressions Ap

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