Questions on Algebra: Combinatorics and Permutations answered by real tutors!

Tutors Answer Your Questions about Permutations (FREE)

Question 883109: Solve this equation:
Click here to see answer by richwmiller(17219)

Question 883105: Solve this..
Click here to see answer by richwmiller(17219)

Question 883184: Ans this..
◻➕◻➕◻➕◻➕◻=30
Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
U can also repeat the numbers
Click here to see answer by Fombitz(32388)

Question 883187: Ans this..
◻➕◻➕◻=30
Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
U can also repeat the numberse
Click here to see answer by Fombitz(32388)

Question 883337: in how many ways can 8 people be seated in a row such that two brothers must not sit next to each other?
Click here to see answer by josmiceli(19441)

Question 883420: We have the letters A B C D E and F. How many possible three-letter codes are there if repititions are permitted and codes must contain exactly one letter A
Click here to see answer by Fombitz(32388)

Question 883496: Solve this..
...+...+...+...+...=30
Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
U can also repeat the numbers...
Click here to see answer by Alan3354(69443)

Question 883540: Hello there, I need some help with my homework :) the question is
How many 4 digit numbers may be formed that are greater than 3,255 from the numbers, 2,3,4,5 and 6, if repetition is allowed?
My first answer was 410 but then I tried to do it again and the result was 406.. I might be right and I might be wrong and I just wanted to make sure please help thank you so much and have a great day:)
Click here to see answer by rothauserc(4718)

Question 883536: how many 3 digit numbers divisible by 5 can be formed from 1,2,3,4,5,6 ?
Click here to see answer by LinnW(1048)

Question 883539: how many necklaces can be made from 6 beads of different colors?
the answer is 60, but how?
Click here to see answer by KMST(5328)

Question 883600: How many ordered lists are there of five items chosen from seven?
Click here to see answer by jim_thompson5910(35256)

Question 883571: Working on Venn diagrams, I was given the question: "How many elements are in the set U'." With the following information in a two-circle Venn:
A = 37
B = 33
A intersect B = 14
U = 40
I know U' means the complement of U, but does that mean my answer is 0 or everything contained within the circles and exclude U?
Click here to see answer by richwmiller(17219)

Question 883667: how to get the difference of 12345 and 6789 that the differences will be greatest possible differences

Click here to see answer by Alan3354(69443)

Question 883683: There are 15 people waiting to take their driver's training test. In how many ways can the 15 be divided equally among 3 examiners?
I know this is probably a combination problem so can you show me using the long way and the calculator?
Click here to see answer by pj66(7)

Question 883809: if there are 6 boys and 3 girls .Then find the number of groups formed with boys more in number then girls in each group .each group should contain 7 members.
Click here to see answer by dkppathak(439)

Question 883784: how to make sum 30 using 1,3,5,7,9,11,13,15. any 5 numbures must be in use and you can repeat the numbures?
Click here to see answer by smarts100%(7)

Question 884007: Smallest 5 digit number with all digits except one them as 0
Click here to see answer by Fombitz(32388)

Question 884282: Solve this..
?+ ? + ? + ? + ? =30
Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
U can also repeat the numbers..This question
came in UPSC Final Exams held in Dec'13......
Click here to see answer by Fombitz(32388)

Question 884280: Some students can pose for a snapshot in rows of 6 or 7, what is the least numbers of students there can be?
Click here to see answer by Alan3354(69443)

Question 884555: how many two digits even number can be formed using digits0,1,2,3,4 without repitition?
Click here to see answer by JulietG(1812)

Question 884523: A person orders a new car with a choice of 12 colors and with the options of with or without air conditioning, heated seats, anti lock brakes, power windows, CD player how many different ways can the car be ordered?
Click here to see answer by Fombitz(32388)

Question 884724: ?+?+?+?+?=30
Click here to see answer by richwmiller(17219)

Question 884629: find the no.of combinations of the word INDEPENDENT taking 5 letters at a time.
Click here to see answer by Edwin McCravy(20054)

Question 884811: How can we get a sum of 30 by adding odd numbers from 1 to 15 and repeating any number sny number of times and adding the numbers just five times
Click here to see answer by JulietG(1812)

Question 884950: 3 friends had 10bob each, they bot lunch of 25bob, they paid 30bob and were given 3bob each because there was no 5bob, they gave him the 2bob tip.
my question
if each gave out 10 bob and was given back 1bob, each spend 10-1=9
9x7= 27, the waiter was given a tip of 2bob, where did the 1bob go?
Click here to see answer by JulietG(1812)

Question 885014: Using the digit set (0,1,2,3,4,5) how many 4-digit numbers can be formed if the number must have two zeros and no other repeated digits?
Click here to see answer by Edwin McCravy(20054)

Question 885013: Using the digit set (0,1,2,3,4,5) how many 4-digit numbers can be formed if the number must end in zero?
Click here to see answer by Edwin McCravy(20054)

Question 884595: Danny has five pictures that he wants to hang horizontally one row on his wall.
He wants to have the picture of the football in the middle. The picture of the sunflower can either be on the far right or the far left side.
This is one possible way:
sunflower, car, football, baby, animal
How many different ways can Danny hang his pictures?

Click here to see answer by Edwin McCravy(20054)

Question 884317: a coordinator will select 7 songs from a list of 10 to compose an events musical entertainment. How many different line ups are possible
Click here to see answer by Edwin McCravy(20054)

Question 884205: Find the value of each expression. Show your work.
1.) 15p4
2.) 9p3
3.) 10c4
Click here to see answer by Edwin McCravy(20054)

Question 885180: how many ways can the letters in the word BUSINESS be arranged

Click here to see answer by Edwin McCravy(20054)

Question 885341: How can we get a sum of 30 by adding odd numbers from 1 to 15 and repeating any number any number of times and adding the numbers just five times
Click here to see answer by Alan3354(69443)

Question 885305: A car plate is written by taking 3 alphabets
and 3 integers, if after 3 alphabets 3 zeros are
not allowed, then total possible car plates with
no code repeated are ?
Click here to see answer by ewatrrr(24785)

Question 885176: The crew of an 8 member rowing team is to be chosen from 12 men , of which 3 can
on one side only and 2 can on other side only.find number of ways of arranging the
crew with 4 memembers on each side.

Click here to see answer by Edwin McCravy(20054)

Question 885456: At T.G.I. Friday's, you have 8 appetizers, 20 entrees, and 10 desserts. How many different meals can you choose if you select one of each?
Click here to see answer by josmiceli(19441)

Question 883635: Using the digits from the number 4 216 039 with no repetitions, how many four digit numbers greater that 5 000 can be formed?
Click here to see answer by Edwin McCravy(20054)

Question 883135: Show that
a + b +c + d + e = 30 by using 1,3,5,7,9,11,13 and 15 to get the answer and you can repeat a number n number of times.
where n is according to user's choice

eg. we can use 5^2 but then if we use some other number it also has to be like 1^2
or 3^2

Click here to see answer by Edwin McCravy(20054)

Question 885505: A company has 12 construction workers. The manager plans to assign 3 to job site A, 4 to job site B and 5 to job site C. In how many different ways can the manager make this assignment?
Click here to see answer by Edwin McCravy(20054)

Question 885638: ooooo use any mathematical operation answer is 120

Click here to see answer by Alan3354(69443)

Question 885692: How many different sized triangles can be formed using 2 cm,3cm,4cm,5cm and 6cm rods?
Click here to see answer by KMST(5328)

Question 885738: how many solutions we can have so that sum of 5 whole numbers is 30 and repetition of numbers is allowed
Click here to see answer by richwmiller(17219)

Question 885856: there are 16 seats for passengers, how many possible seating arrangements are there for 5 passengers?
Click here to see answer by Alan3354(69443)

Question 885983: 1. A table
Click here to see answer by richwmiller(17219)

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