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

If \( \frac{(n+1)!+n!}{n!}=13 \), what is the value of (n)?

Answer and explanation

Correct answer: 11

Since \((n+1)!=(n+1)n!\), \(\frac{(n+1)!+n!}{n!}=\frac{(n+1)n!+n!}{n!}=n+2\). Hence, \(n+2=13\), giving \(n=11\). If \(n=12\), the left-hand side becomes 14, so it is not correct. Exam tip: In factorial expressions, first rewrite the larger factorial as a multiple of the smaller factorial.

Related tags

Factorial NotationFactorial EquationsPermutations And CombinationsAlgebraic SimplificationClass 11 MathematicsMathematicsClass 11 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.