समांतर श्रेणी में \(a_6=31\) और \(a_{14}=79\) है। \(a_{10}\) क्या होगा?

In an arithmetic progression, \(a_6=31\) and \(a_{14}=79\). What is \(a_{10}\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (55)

Step 1

Concept

The increase over eight gaps is (48), so (d=6) and (a_{10}=31+4(6)=55). \(a_{10}\) lies between the two given terms.

Step 2

Why this answer is correct

The correct answer is B. (55). The increase over eight gaps is (48), so (d=6) and (a_{10}=31+4(6)=55). \(a_{10}\) lies between the two given terms.

Step 3

Exam Tip

आठ अंतरों में वृद्धि (48) है, इसलिए (d=6) और (a_{10}=31+4(6)=55)। \(a_{10}\) दोनों दिए पदों के बीच आता है।

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समांतर श्रेणी में \(a_6=31\) और \(a_{14}=79\) है। \(a_{10}\) क्या होगा? / In an arithmetic progression, \(a_6=31\) and \(a_{14}=79\). What is \(a_{10}\)?

Correct Answer: B. (55). Explanation: आठ अंतरों में वृद्धि (48) है, इसलिए (d=6) और (a_{10}=31+4(6)=55)। \(a_{10}\) दोनों दिए पदों के बीच आता है। / The increase over eight gaps is (48), so (d=6) and (a_{10}=31+4(6)=55). \(a_{10}\) lies between the two given terms.

Which concept should I revise for this Mathematics MCQ?

The increase over eight gaps is (48), so (d=6) and (a_{10}=31+4(6)=55). \(a_{10}\) lies between the two given terms.

What exam hint can help solve this Mathematics question?

आठ अंतरों में वृद्धि (48) है, इसलिए (d=6) और (a_{10}=31+4(6)=55)। \(a_{10}\) दोनों दिए पदों के बीच आता है।