यदि किसी समांतर श्रेणी में \(S_6=111\) और \(S_{13}=494\) है, तो सातवें से तेरहवें पदों का योग कितना है?
If an arithmetic progression has \(S_6=111\) and \(S_{13}=494\), what is the sum of the (7)th to (13)th terms?
Explanation opens after your attempt
D. (383)
Concept
The sum of the (7)th to (13)th terms is \(S_{13}-S_6=383\). For a group of consecutive terms, subtract partial sums.
Why this answer is correct
The correct answer is D. (383). The sum of the (7)th to (13)th terms is \(S_{13}-S_6=383\). For a group of consecutive terms, subtract partial sums.
Exam Tip
सातवें से तेरहवें पदों का योग \(S_{13}-S_6=383\) है। लगातार पदों के समूह के लिए आंशिक योग घटाएँ।
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