Tutors Answer Your Questions about Permutations (FREE)
Question 1151419: A student is selecting three classes for the winter quarter. There are four drawing and design courses, three general-education courses, and three other major courses that fit in their schedule. If said student is only taking one course from each category, determine the number of possible class schedules.
Click here to see answer by Boreal(15235)  |
Question 1149684: Twenty students, ten male and ten female, are to travel from school to the sports ground. Eight of them go in a minibus, six of them in cars, four of them on bikes and two walk.
In how many ways can they be distributed if none of the boys walk?
Click here to see answer by Edwin McCravy(20054)  |
Question 1151929: A 20-sided icosahedron is thrown 6 times. It has 7 red, 3 blue, 2 purple, 2 brown, 2 black, 2 green faces. What is the probability that 5 red and 2 blue faces will appear? But what if all the faces have the same color?
Click here to see answer by ikleyn(52778)  |
Question 1151958: A 20-sided icosahedron is thrown 6 times. It has 7 red, 3 blue, 2 purple, 2 brown, 2 black, 4 green faces. What is the probability that 5 red and 2 blue faces will appear? But what if all the faces have the same color?
Click here to see answer by ikleyn(52778)  |
Question 1152119: A school dance committee is made up of 2 freshman, 6 sophomores, 3 juniors, and 2 seniors.
How many ways are there to sit the committee in a row at a meeting if the freshman,sophomores, and juniors must sit by grade, but the seniors can sit wherever they want?
Click here to see answer by Edwin McCravy(20054)  |
Question 1152119: A school dance committee is made up of 2 freshman, 6 sophomores, 3 juniors, and 2 seniors.
How many ways are there to sit the committee in a row at a meeting if the freshman,sophomores, and juniors must sit by grade, but the seniors can sit wherever they want?
Click here to see answer by ikleyn(52778)  |
Question 1152232: A school dance committee is made up of 3 freshman, 4 sophomores, 2 juniors, and 5 seniors.
How many ways are there to sit the committee in a row at a meeting if the freshman,sophomores, and juniors must sit by grade, but the seniors can sit wherever they want?
Click here to see answer by ikleyn(52778)  |
Question 1152247: A lottery game requires that a person select an uppercase or lowercase letter followed by three different two-digit numbers (where the digits cannot both be zero). How many different ways are there to fill out a lottery ticket?
Click here to see answer by Boreal(15235)  |
Question 1152347: a)How many ways can 10 questions on a test be arranged?
b)How many ways can 10 questions be arranged on a test, if the easiest and the most difficult questions are side by side?
c)How many ways can 10 questions on a test be arranged, if the easiest and the most difficult questions are NOT side by side? ( hint: indirect method)
Thanks
Click here to see answer by ikleyn(52778)  |
Question 1152448: A warehouse employs 27 workers on first shift, 19 workers on second shift, and 14 workers on third shift. Eight workers are chosen at random to be interviewed. Find the probability of choosing exactly five first shift workers.
Click here to see answer by ikleyn(52778)  |
Question 1152534: At a scientific congress, 85% of participants speak english (A), 35% speak french (F) and 25% speak both of these languages. If we randomly chose a congressman, what would be the probability of him being able to speak English or French?
Click here to see answer by ikleyn(52778)  |
Question 1153090: A serial number on a 5$ bill includes 3 letters followed 7 digits. Assuming the digits are randomly assigned, what is the probability that the serial number will contain at least five even digits? What is the average number of even digits that will appear in a serial number?
Click here to see answer by greenestamps(13198)  |
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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, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035
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