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

From (13) candidates (5) prize winners are to be selected and all prizes are identical. How many ways are there?

Answer and explanation

Correct answer: 1287

Since all prizes are identical, the order of the 5 selected candidates does not matter. Hence, use combinations: \(\binom{13}{5}=\frac{13!}{5!8!}=1287\). The value 154440 is \(^{13}P_5\), which would apply if the prizes were distinct. Exam tip: When identical objects or prizes are involved, order is not counted, so use combinations.

Related tags

CombinationsPermutations And CombinationsIdentical PrizesSelectionBinomial CoefficientClass 11MathematicsClass 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.