Class 9 Mathematics - Sequences and Progressions - Recursive rule Easy Quiz

Mathematics Sequences and Progressions Recursive rule Easy Class 9 Level 46

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Question 1/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि क्रम का नियम \(a_n=4n\) है, तो \(a_5\) क्या होगा?

If the sequence rule is \(a_n=4n\), what is \(a_5\)?

Explanation opens after your attempt

Correct Answer

C. (20)

Explanation

Simple Explanation

(n=5) रखने पर (a_5=4(5)=20) है। नियम में सही स्थान संख्या रखें। / Putting (n=5), (a_5=4(5)=20). Substitute the correct position number in the rule.

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Question 2/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि \(a_n=n^2+1\) है, तो \(a_3\) का मान क्या है?

If \(a_n=n^2+1\), what is the value of \(a_3\)?

Explanation opens after your attempt

Correct Answer

D. (10)

Explanation

Simple Explanation

(n=3) रखने पर \(a_3=3^2+1=10\) है। पहले वर्ग निकालें, फिर जोड़ करें। / Putting (n=3), \(a_3=3^2+1=10\). Square first, then add.

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Question 3/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

क्रम \(2,6,18,54,\ldots\) में प्रत्येक पद पिछले पद से कैसे प्राप्त होता है?

How is each term obtained from the previous term in \(2,6,18,54,\ldots\)?

Explanation opens after your attempt

Correct Answer

C. (3) से गुणा करकेBy multiplying by (3)

Explanation

Simple Explanation

हर पद पिछले पद का (3) गुना है। पास-पास के पदों की तुलना करके नियम पहचानें। / Each term is (3) times the previous term. Compare nearby terms to identify the rule.

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Question 4/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

क्रम \(80,40,20,10,\ldots\) में प्रत्येक पद पिछले पद से कैसे प्राप्त होता है?

How is each term obtained from the previous term in \(80,40,20,10,\ldots\)?

Explanation opens after your attempt

Correct Answer

D. (2) से भाग देकरBy dividing by (2)

Explanation

Simple Explanation

हर पद पिछले पद का आधा है। इसलिए नियम (2) से भाग देना है। / Each term is half of the previous term. So the rule is dividing by (2).

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Question 5/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

कौन सा क्रम हर बार (4) घटाकर बनाया गया है?

Which sequence is formed by subtracting (4) each time?

Explanation opens after your attempt

Correct Answer

A. (32,28,24,20)

Explanation

Simple Explanation

(32,28,24,20) में हर बार (4) घटता है। घटते क्रम में अंतर ध्यान से देखें। / In (32,28,24,20), (4) is subtracted each time. Check the difference carefully in decreasing sequences.

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Question 6/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि \(a_n=3n+2\) है, तो \(a_4\) क्या होगा?

If \(a_n=3n+2\), what will \(a_4\) be?

Explanation opens after your attempt

Correct Answer

A. (14)

Explanation

Simple Explanation

(n=4) रखने पर (a_4=3(4)+2=14) है। पहले गुणा करें, फिर जोड़ें। / Putting (n=4), (a_4=3(4)+2=14). Multiply first, then add.

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Question 7/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि \(a_n=2n^2\) है, तो \(a_3\) का मान क्या है?

If \(a_n=2n^2\), what is the value of \(a_3\)?

Explanation opens after your attempt

Correct Answer

B. (18)

Explanation

Simple Explanation

(n=3) रखने पर (a_3=2\(3^2\)=18) है। वर्ग को गुणा से पहले निकालें। / Putting (n=3), (a_3=2\(3^2\)=18). Square before multiplying.

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Question 8/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि \(a_n=12-n\) है, तो \(a_5\) क्या होगा?

If \(a_n=12-n\), what will \(a_5\) be?

Explanation opens after your attempt

Correct Answer

C. (7)

Explanation

Simple Explanation

(n=5) रखने पर \(a_5=12-5=7\) है। घटाव में क्रम का ध्यान रखें। / Putting (n=5), \(a_5=12-5=7\). Be careful with the order in subtraction.

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Question 9/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

कौन सा क्रम (7) से शुरू होकर हर बार (5) जोड़ता है?

Which sequence starts with (7) and adds (5) each time?

Explanation opens after your attempt

Correct Answer

B. (7,12,17,22)

Explanation

Simple Explanation

(7,12,17,22) में हर बार (5) जोड़ा जाता है। पहले पद और अंतर दोनों जाँचें। / In (7,12,17,22), (5) is added each time. Check both the first term and the difference.

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Question 10/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

कौन सा क्रम (64) से शुरू होकर हर बार (8) घटाता है?

Which sequence starts with (64) and subtracts (8) each time?

Explanation opens after your attempt

Correct Answer

C. (64,56,48,40)

Explanation

Simple Explanation

(64,56,48,40) में हर बार (8) घटता है। नियम को लगातार पदों पर जाँचें। / In (64,56,48,40), (8) is subtracted each time. Check the rule on consecutive terms.

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Question 11/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि \(a_n=6n+1\) है, तो \(a_3\) क्या होगा?

If \(a_n=6n+1\), what will \(a_3\) be?

Explanation opens after your attempt

Correct Answer

D. (19)

Explanation

Simple Explanation

(n=3) रखने पर (a_3=6(3)+1=19) है। नियम में (n) का मान सही रखें। / Putting (n=3), (a_3=6(3)+1=19). Substitute the value of (n) correctly.

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Question 12/12 Easy Mathematics Sequences and Progressions Sequences Class 9 Level 46

यदि \(a_n=3n^2\) है, तो \(a_2\) का मान क्या है?

If \(a_n=3n^2\), what is the value of \(a_2\)?

Explanation opens after your attempt

Correct Answer

A. (12)

Explanation

Simple Explanation

(n=2) रखने पर (a_2=3\(2^2\)=12) है। पहले (n) का वर्ग निकालें। / Putting (n=2), (a_2=3\(2^2\)=12). First square (n).

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Class 9 Mathematics - Sequences and Progressions - Recursive rule Easy Quiz

यदि क्रम का नियम \(a_n=4n\) है, तो \(a_5\) क्या होगा?

Simple Explanation

यदि \(a_n=n^2+1\) है, तो \(a_3\) का मान क्या है?

Simple Explanation

क्रम \(2,6,18,54,\ldots\) में प्रत्येक पद पिछले पद से कैसे प्राप्त होता है?

Simple Explanation

क्रम \(80,40,20,10,\ldots\) में प्रत्येक पद पिछले पद से कैसे प्राप्त होता है?

Simple Explanation

कौन सा क्रम हर बार (4) घटाकर बनाया गया है?

Simple Explanation

यदि \(a_n=3n+2\) है, तो \(a_4\) क्या होगा?

Simple Explanation

यदि \(a_n=2n^2\) है, तो \(a_3\) का मान क्या है?

Simple Explanation

यदि \(a_n=12-n\) है, तो \(a_5\) क्या होगा?

Simple Explanation

कौन सा क्रम (7) से शुरू होकर हर बार (5) जोड़ता है?

Simple Explanation

कौन सा क्रम (64) से शुरू होकर हर बार (8) घटाता है?

Simple Explanation

यदि \(a_n=6n+1\) है, तो \(a_3\) क्या होगा?

Simple Explanation

यदि \(a_n=3n^2\) है, तो \(a_2\) का मान क्या है?

Simple Explanation

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