समांतर श्रेणी \(30,38,46,54,\ldots\) में सातवाँ पद क्या होगा?
What will be the seventh term in the arithmetic progression \(30,38,46,54,\ldots\)?
Explanation opens after your attempt
D. (78)
Concept
(a=30) and (d=8), so \(a_7=30+6\times8=78\). In exams, add the difference (n-1) times.
Why this answer is correct
The correct answer is D. (78). (a=30) and (d=8), so \(a_7=30+6\times8=78\). In exams, add the difference (n-1) times.
Exam Tip
(a=30) और (d=8), इसलिए \(a_7=30+6\times8=78\) है। परीक्षा में (n-1) बार अंतर जोड़ें।
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