Tutors Answer Your Questions about Permutations (FREE)
Question 427150: there are 4 boys and 6 girls signed up to play darts.
how many ways can a 4 person team be chosen?
how many different line ups can be made from the ten people/
how many different states of awards are available to a 4 person team?
Click here to see answer by sudhanshu_kmr(1152)  |
Question 428729: In Mathylvania, license plates have two letters followed by four numbers. However, the letters O and I are not used because they look too much like 0 and 1 (0 and 1 can be used). Answer the following:
a. How many license plates are possible if letters and numbers can be repeated?
b. How many license plates are possible if letters and numbers cannot be repeated?
MY WORK SO FAR:
letter possible: 24 (a b c d e f g h j k l m n p q r s t u v w x y z)
numbers possible: 10 (0 1 2 3 4 5 6 7 8 9)
Click here to see answer by checkley79(3341) |
Question 428999: Mr. Johnson is a faculty advisor to the National Honor Society. There are 30 members. How many ways can he choose 4 members to attend a conference?
Must Show all work, but pick one out of the 4 options down below that best correlate with your answer too.
1. 30P4
2. 30!
3. 30C4
4. 30x4
Click here to see answer by stanbon(75887) |
Question 428995: A company places a 6-symbol code on each unit of product. The code consists of 4 digits, the first of which is number 5, followed by 2 letters, the first of which is NOT a vowel. How many different codes are possible?
Click here to see answer by richard1234(7193)  |
Question 429050: A class consists of 15 students. The instructor wants to pick a group of 4 to work on a special project.
i) How many different groups of 4 can he choose?
ii) If a class consists of 10 girls and 5 boys, how many different groups of 4 are made up of 2 boys and 2 girls?
Click here to see answer by sudhanshu_kmr(1152)  |
Question 429164: I must select my schedule next semester. I need to take one history class out of 5 offered, one English class out of 7 offered and one humanities class out of 10 offered. If there are no restrictions on which one of each course I must take, how many different schedules are possible for me?
Click here to see answer by jorel1380(3719)  |
Question 429259: Stinky is taking a seven-question true-false test, and he does not know any of the answers so he is just going to guess. He overheard the teacher saying that there were four “trues” and three “falses.” In how many different ways can he fill out his scantron if he puts four T’s and four F’s?
Click here to see answer by sudhanshu_kmr(1152)  |
Question 429255: In how many ways can three aces be drawn from a standard deck of 52 cards?
MY WORK SO FAR:
Im not sure which approach to take on this problem.
52 cards=n
3 aces=r
52!/(52-3)!
52!/49!
52x51x50x49x.../49x48x47x...
52x51x50=132,600
OR
I know there are 52 cards in a deck, 4 suits in a deck with one ace each, so 4 aces in a deck.
so...
n=4
r=3
4!/(4-3)!
4!/1!
4x3x2x1=24
I need help!
Click here to see answer by sudhanshu_kmr(1152)  |
Question 429255: In how many ways can three aces be drawn from a standard deck of 52 cards?
MY WORK SO FAR:
Im not sure which approach to take on this problem.
52 cards=n
3 aces=r
52!/(52-3)!
52!/49!
52x51x50x49x.../49x48x47x...
52x51x50=132,600
OR
I know there are 52 cards in a deck, 4 suits in a deck with one ace each, so 4 aces in a deck.
so...
n=4
r=3
4!/(4-3)!
4!/1!
4x3x2x1=24
I need help!
Click here to see answer by richard1234(7193)  |
Question 429521: Ilene allows her life guards to choose what they will wear daily. However, it is her rule that when the lifeguards report for duty that they should be dressed in a full suit. (as described below) How many different outfits can the lifeguards wear?
Full Suit = T-Shirt available in only one color, but four styles; muscle, tank top, short sleeve, and long sleeve.
Jacket- All the same style, but abvailable in red and white colors
Swimming trunks-Have 3 styles bikini, jogging, and knee length, and two colors red and white
Click here to see answer by jorel1380(3719)  |
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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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