एक थिएटर में (16) पंक्तियों में कुल (928) सीटें हैं। यदि हर अगली पंक्ति में (4) सीटें अधिक हैं तो पहली पंक्ति में कितनी सीटें थीं?
A theatre has (928) seats in (16) rows. If each next row has (4) more seats, how many seats were in the first row?
Explanation opens after your attempt
C. (28)
Concept
Using \(S_{16}=928\) and (d=4) gives (a=28). Exam tip: find the first term from total and difference.
Why this answer is correct
The correct answer is C. (28). Using \(S_{16}=928\) and (d=4) gives (a=28). Exam tip: find the first term from total and difference.
Exam Tip
\(S_{16}=928\) और (d=4) रखने पर (a=28) मिलता है। परीक्षा में कुल और अंतर से प्रथम पद निकालें।
Login to save your score, XP, coins and progress.
