एक थिएटर में पहली पंक्ति में (14) सीटें हैं और हर अगली पंक्ति में (4) सीटें अधिक हैं। (10) पंक्तियों में कुल कितनी सीटें होंगी?

In a theatre the first row has (14) seats and each next row has (4) more seats. How many seats are there in (10) rows?

Explanation opens after your attempt
Correct Answer

B. (320)

Step 1

Concept

The seats form the AP \(14,18,22,\ldots\). \(S_{10}=320\).

Step 2

Why this answer is correct

The correct answer is B. (320). The seats form the AP \(14,18,22,\ldots\). \(S_{10}=320\).

Step 3

Exam Tip

सीटें \(14,18,22,\ldots\) समान्तर श्रेणी हैं। \(S_{10}=320\)।

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Mathematics Answer, Explanation and Revision Hints

एक थिएटर में पहली पंक्ति में (14) सीटें हैं और हर अगली पंक्ति में (4) सीटें अधिक हैं। (10) पंक्तियों में कुल कितनी सीटें होंगी? / In a theatre the first row has (14) seats and each next row has (4) more seats. How many seats are there in (10) rows?

Correct Answer: B. (320). Explanation: सीटें \(14,18,22,\ldots\) समान्तर श्रेणी हैं। \(S_{10}=320\)। / The seats form the AP \(14,18,22,\ldots\). \(S_{10}=320\).

Which concept should I revise for this Mathematics MCQ?

The seats form the AP \(14,18,22,\ldots\). \(S_{10}=320\).

What exam hint can help solve this Mathematics question?

सीटें \(14,18,22,\ldots\) समान्तर श्रेणी हैं। \(S_{10}=320\)।