Concept-wise Practice

identify-gp MCQ Questions for Class 9

identify-gp se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

8 questions tagged with identify-gp.

किस अनुक्रम में \(a_4=96\) और (r=2) है?

Which sequence has \(a_4=96\) and (r=2)?

Explanation opens after your attempt
Correct Answer

A. \(12,24,48,96,\ldots\)

Step 1

Concept

In \(12,24,48,96,\ldots\), \(a_4=96\) and the common ratio is (2). Match both the position and the ratio.

Step 2

Why this answer is correct

The correct answer is A. \(12,24,48,96,\ldots\). In \(12,24,48,96,\ldots\), \(a_4=96\) and the common ratio is (2). Match both the position and the ratio.

Step 3

Exam Tip

\(12,24,48,96,\ldots\) में \(a_4=96\) और सार्व अनुपात (2) है। पद-संख्या और अनुपात दोनों मिलाएं।

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किस गुणोत्तर श्रेढ़ी में \(a_1=32\) और \(a_5=2\) है?

Which geometric progression has \(a_1=32\) and \(a_5=2\)?

Explanation opens after your attempt
Correct Answer

A. \(32,16,8,4,\ldots\)

Step 1

Concept

In \(32,16,8,4,2,\ldots\), \(r=\frac{1}{2}\) and the fifth term is (2). Check both first and fifth terms in the options.

Step 2

Why this answer is correct

The correct answer is A. \(32,16,8,4,\ldots\). In \(32,16,8,4,2,\ldots\), \(r=\frac{1}{2}\) and the fifth term is (2). Check both first and fifth terms in the options.

Step 3

Exam Tip

\(32,16,8,4,2,\ldots\) में \(r=\frac{1}{2}\) और पाँचवाँ पद (2) है। विकल्पों में पहला और पाँचवाँ पद दोनों जांचें।

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किस अनुक्रम में \(a_3=45\) और \(a_6=1215\) दोनों सही हैं?

Which sequence has both \(a_3=45\) and \(a_6=1215\)?

Explanation opens after your attempt
Correct Answer

A. \(5,15,45,135,\ldots\)

Step 1

Concept

In \(5,15,45,135,405,1215,\ldots\), \(a_3=45\) and \(a_6=1215\). Check each option up to the required positions.

Step 2

Why this answer is correct

The correct answer is A. \(5,15,45,135,\ldots\). In \(5,15,45,135,405,1215,\ldots\), \(a_3=45\) and \(a_6=1215\). Check each option up to the required positions.

Step 3

Exam Tip

\(5,15,45,135,405,1215,\ldots\) में \(a_3=45\) और \(a_6=1215\) हैं। विकल्पों में पद-संख्या तक जांच करें।

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किस विकल्प में दिए गए पद गुणोत्तर श्रेढ़ी बना सकते हैं?

Which option can form a geometric progression?

Explanation opens after your attempt
Correct Answer

B. (6,18,54)

Step 1

Concept

In (6,18,54), both ratios are (3). For three consecutive terms, both ratios must be equal.

Step 2

Why this answer is correct

The correct answer is B. (6,18,54). In (6,18,54), both ratios are (3). For three consecutive terms, both ratios must be equal.

Step 3

Exam Tip

(6,18,54) में दोनों अनुपात (3) हैं। लगातार तीन पदों के लिए दोनों अनुपात बराबर होने चाहिए।

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किस अनुक्रम में \(a_3=50\) और (r=5) है?

Which sequence has \(a_3=50\) and (r=5)?

Explanation opens after your attempt
Correct Answer

A. \(2,10,50,250,\ldots\)

Step 1

Concept

In \(2,10,50,250,\ldots\), \(a_3=50\) and the common ratio is (5). Match both the position and the ratio.

Step 2

Why this answer is correct

The correct answer is A. \(2,10,50,250,\ldots\). In \(2,10,50,250,\ldots\), \(a_3=50\) and the common ratio is (5). Match both the position and the ratio.

Step 3

Exam Tip

\(2,10,50,250,\ldots\) में \(a_3=50\) और सार्व अनुपात (5) है। पद-संख्या और अनुपात दोनों मिलाएं।

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किस गुणोत्तर श्रेढ़ी में \(a_1=12\) और \(a_4=\frac{3}{2}\) है?

Which geometric progression has \(a_1=12\) and \(a_4=\frac{3}{2}\)?

Explanation opens after your attempt
Correct Answer

A. \(12,6,3,\frac{3}{2},\ldots\)

Step 1

Concept

In \(12,6,3,\frac{3}{2},\ldots\), \(r=\frac{1}{2}\) and the fourth term is \(\frac{3}{2}\). Check both first and fourth terms in the options.

Step 2

Why this answer is correct

The correct answer is A. \(12,6,3,\frac{3}{2},\ldots\). In \(12,6,3,\frac{3}{2},\ldots\), \(r=\frac{1}{2}\) and the fourth term is \(\frac{3}{2}\). Check both first and fourth terms in the options.

Step 3

Exam Tip

\(12,6,3,\frac{3}{2},\ldots\) में \(r=\frac{1}{2}\) और चौथा पद \(\frac{3}{2}\) है। विकल्पों में पहला और चौथा पद दोनों जांचें।

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किस अनुक्रम में \(a_2=18\) और \(a_5=486\) दोनों सही हैं?

Which sequence has both \(a_2=18\) and \(a_5=486\)?

Explanation opens after your attempt
Correct Answer

B. \(6,18,54,162,\ldots\)

Step 1

Concept

In \(6,18,54,162,486,\ldots\), \(a_2=18\) and \(a_5=486\). Check each option up to the required positions.

Step 2

Why this answer is correct

The correct answer is B. \(6,18,54,162,\ldots\). In \(6,18,54,162,486,\ldots\), \(a_2=18\) and \(a_5=486\). Check each option up to the required positions.

Step 3

Exam Tip

\(6,18,54,162,486,\ldots\) में \(a_2=18\) और \(a_5=486\) हैं। विकल्पों में पद-संख्या तक जांच करें।

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कौन-सा अनुक्रम गुणोत्तर श्रेढ़ी है?

Which sequence is a geometric progression?

Explanation opens after your attempt
Correct Answer

B. \(4,12,36,108,\ldots\)

Step 1

Concept

In \(4,12,36,108,\ldots\), each term is multiplied by (3). In a geometric progression consecutive ratios are equal.

Step 2

Why this answer is correct

The correct answer is B. \(4,12,36,108,\ldots\). In \(4,12,36,108,\ldots\), each term is multiplied by (3). In a geometric progression consecutive ratios are equal.

Step 3

Exam Tip

\(4,12,36,108,\ldots\) में हर बार (3) से गुणा हो रहा है। गुणोत्तर श्रेढ़ी में लगातार अनुपात समान होता है।

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