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If (a=10) and (d=0), what will be the fourth term?

Answer and explanation

Correct answer: 10

The nth term of an AP is \(a_n=a+(n-1)d\). Therefore, \(a_4=10+(4-1)\times 0=10\). When \(d=0\), every term is equal to the first term; a value such as 20 would occur only if the common difference were non-zero. Exam tip: Substitute the term number \(n\) and common difference \(d\) carefully in the formula.

Related tags

Arithmetic ProgressionCommon DifferenceNth TermFourth TermZero Common DifferenceIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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