Update
Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है • Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है • Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है
Subjects

Class 9 Mathematics - Sequences and Progressions - Sum of first n natural numbers Medium Quiz

Mathematics Sequences and Progressions Sum of first n natural numbers Medium Class 9 Level 41

Level 41 • 13/50 questions • 35 seconds per question.

Level readiness 13/50 Questions
Time Left 07:35 35 sec/question
RewardsCoins + XP
ModeClassic Quiz
Previous Next Level
Share
This level needs 37 more active questions. Admin panel me same class, subject, difficulty aur level_no 41 par question add karein.
Question 1 / 13 0 score
Answered 0/13 Correct 0 Time 07:35
Question 1/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(1,4,9,16,25,\ldots\) में (9)वाँ पद क्या होगा?

What will be the (9)th term in \(1,4,9,16,25,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (81)

Explanation

Simple Explanation

यह वर्ग संख्याओं का क्रम है। (9)वाँ पद \(9^2=81\) होगा। / This is a sequence of square numbers. The (9)th term is \(9^2=81\).

Open Question Page
Ask Friends
Question 2/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(1,8,27,64,\ldots\) का (6)ठा पद क्या है?

What is the (6)th term of \(1,8,27,64,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (216)

Explanation

Simple Explanation

यह घन संख्याओं का क्रम है। (6)ठा पद \(6^3=216\) है। / This is a sequence of cube numbers. The (6)th term is \(6^3=216\).

Open Question Page
Ask Friends
Question 3/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(1,3,6,10,15,\ldots\) का (7)वाँ पद क्या है?

What is the (7)th term of \(1,3,6,10,15,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (28)

Explanation

Simple Explanation

यह त्रिभुज संख्याओं का क्रम है। (7)वाँ पद (1+2+3+4+5+6+7=28) है। / This is a triangular-number sequence. The (7)th term is (1+2+3+4+5+6+7=28).

Open Question Page
Ask Friends
Question 4/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(2,3,5,8,13,\ldots\) का अगला पद क्या है?

What is the next term of \(2,3,5,8,13,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (21)

Explanation

Simple Explanation

हर पद पिछले दो पदों का योग है। (8+13=21), इसलिए अगला पद (21) है। / Each term is the sum of the previous two terms. (8+13=21), so the next term is (21).

Open Question Page
Ask Friends
Question 5/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(4,7,11,18,29,\ldots\) का अगला पद क्या होगा?

What will be the next term of \(4,7,11,18,29,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (47)

Explanation

Simple Explanation

यहाँ (11=4+7), (18=7+11) और (29=11+18) है। अगला पद (18+29=47) होगा। / Here (11=4+7), (18=7+11), and (29=11+18). The next term is (18+29=47).

Open Question Page
Ask Friends
Question 6/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

यदि किसी क्रम के पहले चार पद (2,7,12,17) हैं, तो \(a_n\) का सरल नियम क्या हो सकता है?

If the first four terms of a sequence are (2,7,12,17), what can be a simple rule for \(a_n\)?

Explanation opens after your attempt
Correct Answer

A. \(a_n=5n-3\)

Explanation

Simple Explanation

(n=1) रखने पर (5(1)-3=2) और अंतर (5) मिलता है। इसलिए \(a_n=5n-3\) सही है। / For (n=1), (5(1)-3=2), and the difference is (5). So \(a_n=5n-3\) is correct.

Open Question Page
Ask Friends
Question 7/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

नियम \(a_n=2n+3\) से बनने वाले पहले चार पद कौन से हैं?

What are the first four terms formed by \(a_n=2n+3\)?

Explanation opens after your attempt
Correct Answer

B. (5,7,9,11)

Explanation

Simple Explanation

(n=1,2,3,4) रखने पर (5,7,9,11) मिलते हैं। पहले चार पदों के लिए (n=1) से शुरू करें। / Putting (n=1,2,3,4) gives (5,7,9,11). Start with (n=1) for the first four terms.

Open Question Page
Ask Friends
Question 8/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

कौन सा क्रम \(a_n=2^n+1\) से बने पहले चार पद दिखाता है?

Which sequence shows the first four terms of \(a_n=2^n+1\)?

Explanation opens after your attempt
Correct Answer

B. (3,5,9,17)

Explanation

Simple Explanation

\(2^1+1=3\), \(2^2+1=5\), \(2^3+1=9\), \(2^4+1=17\)। घात के बाद (1) जोड़ें। / \(2^1+1=3\), \(2^2+1=5\), \(2^3+1=9\), and \(2^4+1=17\). Add (1) after evaluating the power.

Open Question Page
Ask Friends
Question 9/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(3,8,13,\ldots\) के पहले (5) पदों का योग क्या है?

What is the sum of the first (5) terms of \(3,8,13,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (65)

Explanation

Simple Explanation

पहले (5) पद (3,8,13,18,23) हैं। इनका योग (65) है। / The first (5) terms are (3,8,13,18,23). Their sum is (65).

Open Question Page
Ask Friends
Question 10/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(40,36,32,\ldots\) के पहले (4) पदों का योग क्या है?

What is the sum of the first (4) terms of \(40,36,32,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (136)

Explanation

Simple Explanation

पहले (4) पद (40,36,32,28) हैं। इनका योग (136) है। / The first (4) terms are (40,36,32,28). Their sum is (136).

Open Question Page
Ask Friends
Question 11/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(5,8,11,14,\ldots\) में \(a_6+a_7\) का मान क्या है?

What is the value of \(a_6+a_7\) in \(5,8,11,14,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (47)

Explanation

Simple Explanation

\(a_6=20\) और \(a_7=23\) हैं। इसलिए \(a_6+a_7=43\), अतः विकल्प (A) सही है। / \(a_6=20\) and \(a_7=23\). Therefore \(a_6+a_7=43\), so option (A) is correct.

Open Question Page
Ask Friends
Question 12/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

क्रम \(6,10,14,18,\ldots\) में पहले कितने पदों का योग (70) है?

How many first terms of \(6,10,14,18,\ldots\) have sum (70)?

Explanation opens after your attempt
Correct Answer

B. (5)

Explanation

Simple Explanation

पहले (5) पद (6,10,14,18,22) हैं। उनका योग (70) है। / The first (5) terms are (6,10,14,18,22). Their sum is (70).

Open Question Page
Ask Friends
Question 13/13 Medium Mathematics Sequences and Progressions Sequences Class 9 Level 41

यदि \(a_1=3\), \(a_2=8\) और हर अगला पद पिछले दो पदों का योग है, तो \(a_5\) क्या होगा?

If \(a_1=3\), \(a_2=8\), and each next term is the sum of the previous two terms, what is \(a_5\)?

Explanation opens after your attempt
Correct Answer

C. (30)

Explanation

Simple Explanation

क्रम (3,8,11,19,30) बनेगा। इसलिए \(a_5=30\) है। / The sequence becomes (3,8,11,19,30). Therefore \(a_5=30\).

Open Question Page
Ask Friends

Mathematics Quiz Navigation

Mathematics Subject

All difficulty level maps

Sum of first n natural numbers Topic

Topic question list

Sequences and Progressions Chapter

Chapter question list

Search Mathematics

Find related MCQs

All Subjects

Choose another subject
FAQs

Class 9 Mathematics Quiz FAQs

How many questions are in this quiz?

This level is designed for 50 active questions. Currently 13 questions are available for the selected class and difficulty.

Is there a timer in this quiz?

Yes, the timer uses 35 seconds per question for Medium difficulty and shows the total remaining time on the page.

Can I open each question separately?

Yes, every question has its own SEO-friendly page with answer, explanation and related practice links.