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If an arithmetic progression has (d=-1.5) and first term (10), what is the second term?

Answer and explanation

Correct answer: 8.5

The second term of an AP is \(a_2=a_1+d\). Here, \(a_1=10\) and \(d=-1.5\), so \(a_2=10+(-1.5)=8.5\). The value 9.5 would result if the common difference were \(-0.5\), so it is not correct. Exam tip: adding a negative common difference decreases the term.

Related tags

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

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