यदि (3,x,27) गुणोत्तर श्रेढ़ी के लगातार तीन धनात्मक पद हैं, तो (x) क्या होगा?

If (3,x,27) are three consecutive positive terms of a geometric progression, what is (x)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (9)

Step 1

Concept

For the middle term (x), \(x^2=3\cdot27=81\), so (x=9). For positive terms take the positive geometric mean.

Step 2

Why this answer is correct

The correct answer is B. (9). For the middle term (x), \(x^2=3\cdot27=81\), so (x=9). For positive terms take the positive geometric mean.

Step 3

Exam Tip

मध्य पद (x) के लिए \(x^2=3\cdot27=81\), इसलिए (x=9)। धनात्मक पदों में ज्यामितीय माध्य धनात्मक लें।

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Mathematics Answer, Explanation and Revision Hints

यदि (3,x,27) गुणोत्तर श्रेढ़ी के लगातार तीन धनात्मक पद हैं, तो (x) क्या होगा? / If (3,x,27) are three consecutive positive terms of a geometric progression, what is (x)?

Correct Answer: B. (9). Explanation: मध्य पद (x) के लिए \(x^2=3\cdot27=81\), इसलिए (x=9)। धनात्मक पदों में ज्यामितीय माध्य धनात्मक लें। / For the middle term (x), \(x^2=3\cdot27=81\), so (x=9). For positive terms take the positive geometric mean.

Which concept should I revise for this Mathematics MCQ?

For the middle term (x), \(x^2=3\cdot27=81\), so (x=9). For positive terms take the positive geometric mean.

What exam hint can help solve this Mathematics question?

मध्य पद (x) के लिए \(x^2=3\cdot27=81\), इसलिए (x=9)। धनात्मक पदों में ज्यामितीय माध्य धनात्मक लें।