यदि \(a_n=40-5n\) है, तो \(a_3+a_7\) का मान क्या है?
If \(a_n=40-5n\), what is the value of \(a_3+a_7\)?
Explanation opens after your attempt
C. (50)
Concept
\(a_3=25\) and \(a_7=5\), so the sum is (30). Find both terms separately.
Why this answer is correct
The correct answer is C. (50). \(a_3=25\) and \(a_7=5\), so the sum is (30). Find both terms separately.
Exam Tip
\(a_3=25\) और \(a_7=5\), इसलिए योग (30) है। दोनों पद अलग-अलग निकालें।
Login to save your score, XP, coins and progress.
