समांतर श्रेणी \(18,25,32,39,\ldots\) में आठवाँ पद क्या होगा?
What is the eighth term in the arithmetic progression \(18,25,32,39,\ldots\)?
Explanation opens after your attempt
B. (67)
Concept
(a=18) and (d=7), so \(a_8=18+7\times7=67\). In exams, use (a+(n-1)d) for the (n)th term.
Why this answer is correct
The correct answer is B. (67). (a=18) and (d=7), so \(a_8=18+7\times7=67\). In exams, use (a+(n-1)d) for the (n)th term.
Exam Tip
(a=18) और (d=7), इसलिए \(a_8=18+7\times7=67\) है। परीक्षा में (n)वें पद के लिए (a+(n-1)d) लगाएँ।
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