यदि \(a_n=12n-5\) है तो पहले पाँच पदों का औसत क्या होगा?
If \(a_n=12n-5\) then what is the average of the first five terms?
Explanation opens after your attempt
A. (31)
Concept
The first five terms are (7,19,31,43,55) and the average is (31). In exams divide the sum by the number of terms.
Why this answer is correct
The correct answer is A. (31). The first five terms are (7,19,31,43,55) and the average is (31). In exams divide the sum by the number of terms.
Exam Tip
पहले पाँच पद (7,19,31,43,55) हैं और औसत (31) है। परीक्षा में औसत के लिए योग को पदों की संख्या से भाग दें।
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