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If an arithmetic progression has (a=28) and second term (19), what is the common difference?

Answer and explanation

Correct answer: -9

In an AP, the first term is \(a=28\) and the second term is \(a+d=19\). Therefore, \(d=19-28=-9\). Hence, the correct answer is \(-9\). Choosing \(9\) misses the negative sign of the difference. Exam tip: To find the common difference, subtract the previous term from the next term.

Related tags

Arithmetic ProgressionCommon DifferenceFirst TermSecond TermClass 10 MathematicsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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