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

Subjects
0 reads0 ratings0 helpful

Find the sum of the first (54) natural numbers.

Answer and explanation

Correct answer: 1485

The sum of the first \(n\) natural numbers is \(S_n=\frac{n(n+1)}{2}\). Therefore, \(S_{54}=\frac{54\times55}{2}=27\times55=1485\). Hence, 1485 is the correct answer. A value such as 1475 may result from a small multiplication or addition error. Exam tip: for the sum of consecutive numbers from 1 to \(n\), use \(\frac{n(n+1)}{2}\).

Related tags

Sequences And ProgressionsSum Of Natural NumbersArithmetic SeriesFormula ApplicationClass 9 MathematicsSum Of First N Natural NumbersMathematicsClass 9 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.