एक प्रतियोगिता में पहले दौर में (21) प्रतिभागी हैं और हर अगले दौर में (6) प्रतिभागी अधिक हैं। (8) दौरों में कुल कितने प्रतिभागी होंगे?
In a competition there are (21) participants in the first round and (6) more participants in each next round. How many participants are there in (8) rounds?
Explanation opens after your attempt
C. (336)
Concept
The participant numbers are \(21,27,33,\ldots\) and \(S_8=336\). Exam tip: treat each round as one term.
Why this answer is correct
The correct answer is C. (336). The participant numbers are \(21,27,33,\ldots\) and \(S_8=336\). Exam tip: treat each round as one term.
Exam Tip
प्रतिभागियों की संख्या \(21,27,33,\ldots\) है और \(S_8=336\)। परीक्षा में प्रत्येक दौर को एक पद मानें।
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