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

What is the value of (9!)/(6!·3!)?

Answer and explanation

Correct answer: 84

The governing concept is cancellation of common factorial factors. Expand only the part of 9! beyond 6!: 9! = 9 × 8 × 7 × 6!. Therefore, 9!/(6!·3!) = (9 × 8 × 7)/3!. Since 3! = 3 × 2 × 1 = 6, the value is (9 × 8 × 7)/6 = 504/6 = 84. Hence option B is correct. Option A can result from omitting one factor in the numerator. Option C reflects an incorrect division, while option D does not follow from the factorial cancellation. It is important to cancel 6! correctly and still evaluate the complete denominator factor 3!, not just the number 3.

Related tags

Factorial NotationFactorial CancellationCombinationsClass 11Permutations And CombinationsMathematicsClass 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.