Tutors Answer Your Questions about Permutations (FREE)
Question 274645: Seating in a Movie Theater
How many different ways can 5 people--A,B,C,D and E-- sit in a row at a movie theater if (a) A and B must sit together; (b) C must sit to the right of, but not necessarily next to B; (c) D and E will not sit next to to each other?
Thank you,
Click here to see answer by Edwin McCravy(8906)  |
Question 276324: Consider a political discussion group consisting of 6 Democrats, 4 Republicans, and 3 Independents. Suppose that two group members are randomly selected, in succession, to attend a political convention. Find the probability of selecting an Independent and then a Democrat.
Click here to see answer by edjones(7569)  |
Question 276989: A student planning her curriculum for the upcoming year must select one of five business courses, one of three mathematics courses, two of six elective courses, and either one of five history courses or one of three social science courses. How many different curricula are available for her consideration?
Click here to see answer by solver91311(16877)  |
Question 280037: a box contains 7 large red marbles 5 large yellow marbles 3 small red marbles and 5 small yellow marbles. if a marble is drawn at random what is the probability that is yellow, given that it is one of the large marbles
Click here to see answer by checkley77(12569) |
Question 280036: abelardo wants to create several different 7-charcater screen names. he wants to use arrangements of the first 3 letters of his first name (abe), followed by arrangements of 4 digints in 1984, the year of his birth. how many different screen names can he create in this way?
Click here to see answer by checkley77(12569) |
Question 281084: you are hosting a dinner party where there will be 14 persons. your main table seats 10 and 4 people will need to sit at an auxiliary table. how many possibilities do you have for selecting 4 people to sit at the auxiliary table?
Click here to see answer by checkley77(12569) |
Question 281338: There is a class of 20 with 13 boys and 7 girls.
A) how many ways are there to form a committee of 3 boys and 3 girls?
B) A committee will be formed by randomly selecting 6 persons. what is the probability that the committee will have 3 boys and 3 girls
Click here to see answer by stanbon(57290) |
Question 281322: suppose a license plate consists of five different letters.
a) How many five-letter license plates are possible?
b) In how many ways can a five-letter license plate be made with the letters from APRIL if none of the letters are repeated?
c) suppose a license plate is assigned randomly. What is the probability that it will contain the letters from APRIL?
Click here to see answer by edjones(7569)  |
Question 282452: How many sets of four numbers can be chosen from a collection of ten, without regard to order? For example, if I have a set of integers 1 through 10, a subset of four might be 1,2,3,and 4. If I count that as one possible subset, then I do not count 4,3,2,and 1, since I am not concerned with order. Thanks.
Click here to see answer by user_dude2008(1861) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780
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