एक पुस्तकालय के पहले शेल्फ पर (22) किताबें हैं और हर अगले शेल्फ पर (6) किताबें अधिक हैं। (9) शेल्फों पर कुल कितनी किताबें होंगी?
The first shelf of a library has (22) books and each next shelf has (6) more books. How many books are there on (9) shelves?
Explanation opens after your attempt
C. (414)
Concept
The book numbers are \(22,28,34,\ldots\) and \(S_9=414\). Exam tip: take the number of shelves as the number of terms.
Why this answer is correct
The correct answer is C. (414). The book numbers are \(22,28,34,\ldots\) and \(S_9=414\). Exam tip: take the number of shelves as the number of terms.
Exam Tip
किताबों की संख्या \(22,28,34,\ldots\) है और \(S_9=414\)। परीक्षा में शेल्फों की संख्या को पदों की संख्या मानें।
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