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What is the common difference of (1.2,1.8,2.4,3.0,\ldots)?

Answer and explanation

Correct answer: 0.6

The common difference is found by subtracting a term from the term immediately after it. Here, \(1.8-1.2=0.6\) and \(2.4-1.8=0.6\). Therefore, the equal difference between consecutive terms is \(0.6\). Although \(0.4\) is a close distractor, it is not the difference between any two consecutive given terms. Exam tip: Verify the common difference using at least two consecutive pairs.

Related tags

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

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