यदि \(a_1=150\) और (a_{n+1}=a_n-(5n+4)) है तो \(a_4\) क्या होगा?
If \(a_1=150\) and (a_{n+1}=a_n-(5n+4)), what is \(a_4\)?
Explanation opens after your attempt
B. (111)
Concept
The subtracted values are (9,14,19), so \(a_4=150-42=108\). The correct option should include (108).
Why this answer is correct
The correct answer is B. (111). The subtracted values are (9,14,19), so \(a_4=150-42=108\). The correct option should include (108).
Exam Tip
घटने वाले मान (9,14,19) हैं इसलिए \(a_4=150-42=108\) है। सही विकल्प में (108) होना चाहिए।
Login to save your score, XP, coins and progress.
