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In an arithmetic progression, the first term is (13) and the second term is (8). What is (d)?

Answer and explanation

Correct answer: -5

In an arithmetic progression, the common difference is d = a₂ − a₁. Thus, d = 8 − 13 = -5. Therefore, -5 is correct. Choosing 5 would reverse the order of subtraction. In exams, subtract the first term from the second term to find d.

Related tags

Arithmetic ProgressionCommon DifferenceFirst TermSecond TermNegative DifferenceIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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