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In an arithmetic progression, (d=4) and the second term is (11). What is the first term?

Answer and explanation

Correct answer: 7

In an arithmetic progression, the second term is obtained by adding the common difference to the first term: \(a_2=a_1+d\). Thus, \(11=a_1+4\), so \(a_1=7\). Option 11 is the second term, not the first term. Exam tip: subtract \(d\) from the second term to find the first term.

Related tags

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

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