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Subjects
Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMedium
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In a theatre the first row has (19) seats and each next row has (5) more seats. How many seats are there in (14) rows?

Answer and explanation

Correct answer: (714)

The seats are (19,24,29,\ldots) and (S_{14}=714). Exam tip: you may also find the last row and use (S_n=\frac{n}{2}(a+l)).

Related tags

ApWord-ProblemTheatreWord Problems Based On ApsArithmetic Progressions (Ap)Arithmetic Progressions ApMathematicsClass 10 Mcq
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