एक सभागार की पहली पंक्ति में (16) सीटें हैं और हर अगली पंक्ति में (2) सीटें अधिक हैं। (20) पंक्तियों में कुल कितनी सीटें होंगी?

The first row of an auditorium has (16) seats and each next row has (2) more seats. How many seats are there in (20) rows?

Explanation opens after your attempt
Correct Answer

B. (700)

Step 1

Concept

The number of seats is \(16,18,20,\ldots\). \(S_{20}=700\).

Step 2

Why this answer is correct

The correct answer is B. (700). The number of seats is \(16,18,20,\ldots\). \(S_{20}=700\).

Step 3

Exam Tip

सीटों की संख्या \(16,18,20,\ldots\) है। \(S_{20}=700\) होगा।

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Mathematics Answer, Explanation and Revision Hints

एक सभागार की पहली पंक्ति में (16) सीटें हैं और हर अगली पंक्ति में (2) सीटें अधिक हैं। (20) पंक्तियों में कुल कितनी सीटें होंगी? / The first row of an auditorium has (16) seats and each next row has (2) more seats. How many seats are there in (20) rows?

Correct Answer: B. (700). Explanation: सीटों की संख्या \(16,18,20,\ldots\) है। \(S_{20}=700\) होगा। / The number of seats is \(16,18,20,\ldots\). \(S_{20}=700\).

Which concept should I revise for this Mathematics MCQ?

The number of seats is \(16,18,20,\ldots\). \(S_{20}=700\).

What exam hint can help solve this Mathematics question?

सीटों की संख्या \(16,18,20,\ldots\) है। \(S_{20}=700\) होगा।