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In the arithmetic progression (35,28,21,14,\ldots), which term is (0)?

Answer and explanation

Correct answer: 6th

Here, the first term is 35 and the common difference is \(-7\). Therefore, \(a_n=35+(n-1)(-7)\). Putting \(a_n=0\), we get \(35-7(n-1)=0\), so \(n=6\). Hence, 0 is the sixth term. The fifth term is 7, so it is not correct. Exam tip: To find a term’s position, substitute its value in \(a_n=a+(n-1)d\).

Related tags

Arithmetic ProgressionNth TermCommon DifferenceSequencesTerm PositionSequences And ProgressionsMathematicsClass 9 Mcq

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