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In the sequence (35,30,25,20,\ldots), how much less is each term than the previous term?

Answer and explanation

Correct answer: 5

From 35 to 30 and from 30 to 25, 5 is subtracted each time. Therefore, each term is 5 less than the preceding term. The common difference is \(d=-5\); the negative sign shows decrease, whereas the question asks how much less, so the answer is 5. Exam tip: In a decreasing AP, the common difference is negative.

Related tags

Arithmetic ProgressionCommon DifferenceDecreasing SequenceClass 10 MathematicsAp IntroductionIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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