एक ऑनलाइन खेल में पहले स्तर पर (120) अंक मिलते हैं और हर अगले स्तर पर (45) अंक अधिक मिलते हैं। (18)वें स्तर पर कितने अंक मिलेंगे?
In an online game (120) points are earned at the first level and (45) more points are earned at each next level. How many points are earned at the (18)th level?
Explanation opens after your attempt
A. (885)
Concept
The points are \(120,165,210,\ldots\) and \(a_{18}=885\). Exam tip: take the level number as the term number.
Why this answer is correct
The correct answer is A. (885). The points are \(120,165,210,\ldots\) and \(a_{18}=885\). Exam tip: take the level number as the term number.
Exam Tip
अंकों की संख्या \(120,165,210,\ldots\) है और \(a_{18}=885\)। परीक्षा में स्तर संख्या को पद संख्या मानें।
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