Skip to content

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

Class 9 Mathematics Sequences and Progressions Sum of first n natural numbersHard

0 reads0 ratings0 helpful

What is the value of (S_{35}+S_{55}+S_{75})?

Answer and explanation

Correct answer: (5020)

(S_{35}=630), (S_{55}=1540), and (S_{75}=2850), so the total is (5020). Write all three sums separately and add.

Related tags

Math Sequences Natural-Numbers Sum Sum Of First N Natural Numbers Sequences And Progressions Mathematics Class 9 Mcq

सुधार सुझाएँ / Earn

Student feedback

Was this question useful?

No ratings yetWrite a review / Rate this question

Was this question useful?

👍 0 Helpful 👎 0 Not helpful

Difficulty

Easy0%

Medium0%

Hard0%

Was the explanation clear?

Yes 0% No 0%

0 responses

Student Reviews

No published reviews yet.

Found an issue? Help improve this question My reports and replies