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Arranging People: Permutations & Combinations Video Lecture | General Aptitude for GATE - Mechanical Engineering
FAQs on Arranging People: Permutations & Combinations Video Lecture - General Aptitude for GATE - Mechanical Engineering
| 1. How do permutations and combinations differ when arranging people? |  |
Ans. Permutations involve arranging people in a specific order, while combinations do not consider the order in which people are arranged.
| 2. What is the formula for calculating permutations when arranging people? | |
Ans. The formula for permutations is nPr = n! / (n-r)!, where n represents the total number of people and r represents the number of people being arranged.
| 3. When should permutations be used instead of combinations when arranging people? | |
Ans. Permutations should be used when the order in which people are arranged matters, such as determining the order of finish in a race or arranging students in a line based on height.
| 4. Can combinations be used to arrange people in a specific order? | |
Ans. No, combinations do not consider the order in which people are arranged, so they are not suitable for situations where the order matters.
| 5. How can permutations and combinations be applied in real-life scenarios involving arranging people? | |
Ans. Permutations can be used to calculate the number of ways a group of people can be seated at a table, while combinations can be used to determine the number of different committees that can be formed from a group of people.
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Oct 18, 2025
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