समांतर श्रेणी \(13,18,23,28,\ldots\) में आठवाँ पद क्या होगा?
What is the eighth term in the arithmetic progression \(13,18,23,28,\ldots\)?
Explanation opens after your attempt
C. (48)
Concept
(a=13) and (d=5), so \(a_8=13+7\times5=48\). In exams, use (a+(n-1)d) for the (n)th term.
Why this answer is correct
The correct answer is C. (48). (a=13) and (d=5), so \(a_8=13+7\times5=48\). In exams, use (a+(n-1)d) for the (n)th term.
Exam Tip
(a=13) और (d=5), इसलिए \(a_8=13+7\times5=48\) है। परीक्षा में (n)वें पद के लिए (a+(n-1)d) लगाएँ।
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