यदि \(a_1=20\) और \(a_{n+1}=a_n+1\) है तो \(a_4\) क्या होगा?
If \(a_1=20\) and \(a_{n+1}=a_n+1\), what is \(a_4\)?
Explanation opens after your attempt
C. (23)
Concept
The terms are (20,21,22,23), so \(a_4=23\). Exam tip: count positions carefully even in small additions.
Why this answer is correct
The correct answer is C. (23). The terms are (20,21,22,23), so \(a_4=23\). Exam tip: count positions carefully even in small additions.
Exam Tip
पद (20,21,22,23) हैं इसलिए \(a_4=23\) है। छोटे जोड़ में भी क्रमांक सावधानी से गिनें।
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