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Rows of seats in a class increase as (12,14,16,18,\ldots). What is the common difference of this arrangement?

Answer and explanation

Correct answer: 2

In an arithmetic progression, the common difference is the difference between two consecutive terms. Here, \(14-12=2\) and \(16-14=2\), so the common difference is 2. Option 4 is incorrect because it is the difference between the first and third terms, not consecutive terms. Exam tip: subtract each term from the term immediately after it to find the common difference.

Related tags

Arithmetic ProgressionCommon DifferenceConsecutive TermsClass 10 MathematicsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)Arithmetic Progressions Ap

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