WebJun 14, 2024 · 3 Answers Sorted by: 8 To get 72 interpreting this as the boys sitting together and the girls sit together: 3! = 6 ways of ordering the boys among themselves 3! = 6 ways of ordering the girls among themselves 2! = 2 ways of ordering the two groups Then 6 × 6 × 2 = 72 Share Cite Follow answered Jun 14, 2024 at 8:58 Henry 148k 9 117 241 WebOnce that choice is made, there are 4 history books left, and therefore, 4 choices for the last slot. The choices are shown below: 4. 3. 2. 5. 4. Therefore, the number of permutations are 4 · 3 · 2 · 5 · 4 = 480. Alternately, we can see that 4 · 3 · 2 is really same as 4P3, and 5 · 4 is 5P2.
How many different ways can 9 people line up for a picture?
WebJun 15, 2016 · For the first position there will be 9 people to choose from. Once that person is chosen, there are 8 to choose from for the second person and so on, until for the last person there will only be 1 person left for the last position. This is called 9 factorial (9!) and means 9x8x7x6x5x4x3x2x1. Answer link WebAnswer (1 of 3): If the two cashiers are denoted by A and B, and we have 3 people p, q and r then they can dispose themselves in 4 configurations: * A - 3 people, B - 0 and we have 6 orderings of the people pqr, prq, qpr, qrp, rpq, rqp * A - 2 people, B - 1 with the following 6 orderings for A... raymond breton
How many different ways can 12 people line up to go to the same ...
WebA: We have 9 ways(m=9) of selecting one colour from 9 different colours of car, and we have 3 ways(n=3)… question_answer Q: 1.In how many ways can 7 floats line up for the homecoming parade? WebOct 29, 2024 · For question a, the answer would be 9! 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 362,880. There are 362,880 ways 9 people can line up with no restrictions. For question b, … WebPermutations and Combinations. arrow_forward. If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba…. raymond breteche