Combinations — Teams & Committees
Combinations — team और committee चुनना
title
Combinations — Teams & Committees
- Permutation & Combination
- Combinations — Teams & Committees
Hello दोस्तों! MeraExam की एक और class में आपका स्वागत है। आज का topic है — Combinations — team और committee चुनना। बिलकुल zero से, एकदम आसान भाषा में। चलिए शुरू करते हैं!
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Interactive — learn by doing. Drag, tap and explore to build the intuition.
Does the order matter?
Pick r from n. If arrangement matters (a race podium) use permutations; if only the group matters (a team) use combinations.
ⁿPᵣ = 5! / (5−3)!
60
order matters — arrangements
ⁿCᵣ = ⁿPᵣ / 3!
10
order ignored — selections
💡 Every selection of 3 can be arranged 3! ways, so ⁿPᵣ is exactly 3! times ⁿCᵣ.