Hard Mathematics Arithmetic Progressions (AP) Class 10 Level 63

किस (a) के लिए (a+4, 2a+1, 5a-8) समांतर श्रेणी है?

For which (a) is (a+4, 2a+1, 5a-8) an arithmetic progression?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

The differences are (a-3) and (3a-9). Equating them gives (a=3).

Step 2

Why this answer is correct

The correct answer is C. (3). The differences are (a-3) and (3a-9). Equating them gives (a=3).

Step 3

Exam Tip

अंतर (a-3) और (3a-9) हैं। बराबर करने पर (a=3) मिलता है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

किस (a) के लिए (a+4, 2a+1, 5a-8) समांतर श्रेणी है? / For which (a) is (a+4, 2a+1, 5a-8) an arithmetic progression?

Correct Answer: C. (3). Explanation: अंतर (a-3) और (3a-9) हैं। बराबर करने पर (a=3) मिलता है। / The differences are (a-3) and (3a-9). Equating them gives (a=3).

Which concept should I revise for this Mathematics MCQ?

The differences are (a-3) and (3a-9). Equating them gives (a=3).

What exam hint can help solve this Mathematics question?

अंतर (a-3) और (3a-9) हैं। बराबर करने पर (a=3) मिलता है।

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