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add-one MCQ Questions for Class 9

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3 questions tagged with add-one.

Question 1/3 Easy Mathematics Sequences and Progressions Recursive rule Class 9 Level 49

यदि \(a_1=20\) और \(a_{n+1}=a_n+1\) है तो \(a_4\) क्या होगा?

If \(a_1=20\) and \(a_{n+1}=a_n+1\), what is \(a_4\)?

Explanation opens after your attempt
Correct Answer

C. (23)

Step 1

Concept

The terms are (20,21,22,23), so \(a_4=23\). Exam tip: count positions carefully even in small additions.

Step 2

Why this answer is correct

The correct answer is C. (23). The terms are (20,21,22,23), so \(a_4=23\). Exam tip: count positions carefully even in small additions.

Step 3

Exam Tip

पद (20,21,22,23) हैं इसलिए \(a_4=23\) है। छोटे जोड़ में भी क्रमांक सावधानी से गिनें।

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Question 2/3 Easy Mathematics Sequences and Progressions Recursive rule Class 9 Level 48

यदि \(a_1=12\) और \(a_{n+1}=a_n+1\) है तो \(a_5\) क्या होगा?

If \(a_1=12\) and \(a_{n+1}=a_n+1\), what is \(a_5\)?

Explanation opens after your attempt
Correct Answer

C. (16)

Step 1

Concept

The terms are (12,13,14,15,16), so \(a_5=16\). Exam tip: count positions carefully even in small additions.

Step 2

Why this answer is correct

The correct answer is C. (16). The terms are (12,13,14,15,16), so \(a_5=16\). Exam tip: count positions carefully even in small additions.

Step 3

Exam Tip

पद (12,13,14,15,16) हैं इसलिए \(a_5=16\) है। छोटे जोड़ में भी क्रमांक सावधानी से गिनें।

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Question 3/3 Easy Mathematics Sequences and Progressions Recursive rule Class 9 Level 47

यदि \(a_1=7\) और \(a_{n+1}=a_n+1\) है तो \(a_6\) क्या होगा?

If \(a_1=7\) and \(a_{n+1}=a_n+1\), what is \(a_6\)?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

The terms are (7,8,9,10,11,12), so \(a_6=12\). Exam tip: count positions carefully in small-step rules.

Step 2

Why this answer is correct

The correct answer is C. (12). The terms are (7,8,9,10,11,12), so \(a_6=12\). Exam tip: count positions carefully in small-step rules.

Step 3

Exam Tip

पद (7,8,9,10,11,12) हैं इसलिए \(a_6=12\) है। छोटे जोड़ वाले नियम में गिनती सही रखें।

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