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

The sum of the first (60) natural numbers is (1830). What is the sum of the first (59) natural numbers?

Answer and explanation

Correct answer: 1770

The sum of the first 60 natural numbers includes the last number, 60. Therefore, subtract 60 to get the sum of the first 59 numbers: \(S_{59}=S_{60}-60=1830-60=1770\). Hence, 1770 is correct. Getting 1780 would mean subtracting 50, which is not the last term here. Exam tip: when reducing a consecutive natural-number sum by one term, subtract the omitted last term.

Related tags

MathematicsSequences And ProgressionsNatural NumbersSum Of N TermsArithmetic ReasoningSum Of First N Natural NumbersClass 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.