यदि AP में \(a_7=58\) और \(a_{16}+a_{25}=638\) है, तो \(a_{49}\) क्या होगा?

If in an AP \(a_7=58\) and \(a_{16}+a_{25}=638\), what is \(a_{49}\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (808)

Explanation

Simple Explanation

(a_{16}+a_{25}=\(a_7+9d\)+\(a_7+18d\)=116+27d=638), इसलिए \(d=\frac{58}{3}\) और \(a_{49}=58+42d=870\)। / (a_{16}+a_{25}=\(a_7+9d\)+\(a_7+18d\)=116+27d=638), so \(d=\frac{58}{3}\) and \(a_{49}=58+42d=870\).

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि AP में \(a_7=58\) और \(a_{16}+a_{25}=638\) है, तो \(a_{49}\) क्या होगा? / If in an AP \(a_7=58\) and \(a_{16}+a_{25}=638\), what is \(a_{49}\)?

Correct Answer: C. (808). Explanation: (a_{16}+a_{25}=\(a_7+9d\)+\(a_7+18d\)=116+27d=638), इसलिए \(d=\frac{58}{3}\) और \(a_{49}=58+42d=870\)। / (a_{16}+a_{25}=\(a_7+9d\)+\(a_7+18d\)=116+27d=638), so \(d=\frac{58}{3}\) and \(a_{49}=58+42d=870\).