एक समान्तर श्रेणी में प्रथम पद (6) है और \(S_{12}=4S_6\) है। सार्व अंतर क्या होगा?

In an arithmetic progression the first term is (6) and \(S_{12}=4S_6\). What is the common difference?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

From (6(12+11d)=4\cdot3(12+5d)), (d=12). Exam tip: write both sums separately and then compare.

Step 2

Why this answer is correct

The correct answer is C. (12). From (6(12+11d)=4\cdot3(12+5d)), (d=12). Exam tip: write both sums separately and then compare.

Step 3

Exam Tip

(6(12+11d)=4\cdot3(12+5d)) से (d=12) मिलता है। परीक्षा में दोनों योग अलग-अलग लिखकर तुलना करें।

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Mathematics Answer, Explanation and Revision Hints

एक समान्तर श्रेणी में प्रथम पद (6) है और \(S_{12}=4S_6\) है। सार्व अंतर क्या होगा? / In an arithmetic progression the first term is (6) and \(S_{12}=4S_6\). What is the common difference?

Correct Answer: C. (12). Explanation: (6(12+11d)=4\cdot3(12+5d)) से (d=12) मिलता है। परीक्षा में दोनों योग अलग-अलग लिखकर तुलना करें। / From (6(12+11d)=4\cdot3(12+5d)), (d=12). Exam tip: write both sums separately and then compare.

Which concept should I revise for this Mathematics MCQ?

From (6(12+11d)=4\cdot3(12+5d)), (d=12). Exam tip: write both sums separately and then compare.

What exam hint can help solve this Mathematics question?

(6(12+11d)=4\cdot3(12+5d)) से (d=12) मिलता है। परीक्षा में दोनों योग अलग-अलग लिखकर तुलना करें।