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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsExpert
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The first row of an open-air theatre has (38) seats and each next row has (6) more seats. If the total number of seats is (2840), how many rows are there?

Answer and explanation

Correct answer: (25)

The seats form an AP and (S_n=2840) gives (n=25). Exam tip: when total seats are given, find (n) using the sum formula.

Related tags

ApWord-ProblemTheatreFind-NWord Problems Based On ApsArithmetic Progressions (Ap)Arithmetic Progressions ApMathematics
सुधार सुझाएँ / Earn

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