Tutors Answer Your Questions about Permutations (FREE)
Question 481312: Many states offer personalized license plates. California, for example allows personalized plates with seven spaces for numerals or letter, or one of four symbols. What is the total number of license plates possible using this counting scheme? (assume that each available space is occupied by numeral, letter, symbol, or space. Give the answer in scientific notation, round the first number to two decimal places.
Click here to see answer by Alan3354(31538)  |
Question 481932: 1. How many 6-digit numbers containing 3,2 & 1 (repitition allowed)?
2. How many 6-digit numbers containing two 0, two 1 & two 2 can be constructed(number must not begin with 0)
3. How many 4-digit numbers in terbary numeral system containing two 0, can be constructed? (number must not start with zero.)
Click here to see answer by josmiceli(9819)  |
Question 482207: A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three?
36 said they drove alone.
30 rode in a carpool.
32 rode public transportation.
6 used both carpool and public transportation.
4 used both a carpool and sometimes their own cars.
8 used buses as well as their own cars.
3 used all three methods.
I don't have a clue as to how to solve this. Please help!!
Click here to see answer by Edwin McCravy(8999)  |
Question 482573: A combination lock is set up in the office. The keypad is set up with numbers 0-9 and you know the combination is a 4 digit combo. You also know that numbers are not repeated in the combination. How many different combinations of 4 can be created?
Click here to see answer by caloy(2) |
Question 483116: I have two questions
the first questions is
there are three highways from city A to city B, two highways from city B to C, and four highways from city C to D. How many different highway routes are there from city A to city D?
the second question is
In how may distinct ways can the letters of the word SCIENCE be arranged?
Click here to see answer by edjones(7569)  |
Question 483360: Question:
A club consists of 16 men and 19 women. In how many ways can they choose a president, vice president, treasurer, and secretary, along with an advisory committee of six people?
Comment:
I think this is a matter of a permutation (the election of the positions) and a combination (the election of the committee), but I don't know how to solve them together. Can you help?
Click here to see answer by jorel1380(2518)  |
Question 483058: I am running a league of 40 players in groups of 5
I need combinations of 5 that do not repeat so all players play against
each other once.
using 8 days over 2 weeks i will get through 40 players.
so 1 round= 2 weeks
i think i will need 9.75 rounds to complete this league
780 matches in total.
i am very week at mathmatics so any help would be appreciated
Click here to see answer by sudhanshu_kmr(1152)  |
Question 484302: How many possible eight character passwords can be created using only uppercase letters and numbers?
Since there's 26 different upper case letters and 10 different numbers, I think I should take 8 to the power of 260 (which is 26 times 10) but I'm not sure.
Click here to see answer by sudhanshu_kmr(1152)  |
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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
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