यदि \(a_1=90\) और \(a_{n+1}=a_n-30\) है तो \(a_3\) क्या होगा?
If \(a_1=90\) and \(a_{n+1}=a_n-30\), what is \(a_3\)?
Explanation opens after your attempt
B. (30)
Concept
The terms are (90,60,30), so \(a_3=30\). Exam tip: do not skip steps even with large subtraction.
Why this answer is correct
The correct answer is B. (30). The terms are (90,60,30), so \(a_3=30\). Exam tip: do not skip steps even with large subtraction.
Exam Tip
पद (90,60,30) हैं इसलिए \(a_3=30\) है। बड़े घटाव में भी चरण न छोड़ें।
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