The first row of a stadium has (36) seats and each next row has (4) more seats. If the total number of seats is (2520), how many rows are there?
Answer and explanation
Correct answer: (28)
The seats form an AP and (S_n=2520) gives (n=28). Exam tip: when total seats are given, form an (S_n) equation.
Frequently asked questions
What is the correct answer to this question?
(28)
Why is this the correct answer?
The seats form an AP and (S_n=2520) gives (n=28). Exam tip: when total seats are given, form an (S_n) equation.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Word problems based on APs.
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