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111 Answered Questions for the topic Combinations And Permutations

Combinations And Permutations

03/01/17

Permutations and Combinations

A security code is to be chosen using 6 of the following the letters A,B,Cthe numbers 2,3,5the symbol *and $i)Find the number of different security codes that many be chosen (Ans 20160)ii) the... more
Combinations And Permutations

03/01/17

Permutations and Combinations

1) 6 books are to be chosen from 8 different books(i) Find the number of different selections of 6 books that could be made (ans 28)A clock is to be displayed on a shelf with 3 of the 8 different... more
Combinations And Permutations

02/24/17

Combinations and Permutations

How many even numbers less than 500 can be formed using the digits 1,2,3,4,5. can be used once only ans 28   2)(i) find how many different 4 digit numbers can be formed using the digits... more
Combinations And Permutations

02/19/17

Permutations and Combinations

 (i) Find how many different numbers can be formed using 4 of the digits 1, 2, 3, 4, 5, 6 and 7 if no digit is repeated. (iii) odd and less than 3000         ans 480
Combinations And Permutations

02/12/17

statistic permutation and combonations

Serial numbers for a product are to be made using 2 letters followed by 4 numbers. If the letters are to be taken from the first letters of the alphabet with no repeats and the numbers are taken... more
Combinations And Permutations Permutations Combinations

02/12/17

How many possible different lists out of given subjects

It's a college task. I Know how to find permutation of numbers, letters etc., but this is completely different. Here's the task :   A Student is studying in a university. All study modules... more
Combinations And Permutations Math Help Mathematics

01/20/17

Combinations and permutations please help

Omg pls I'm so stressed right now and I'm hoping this site will help with my math about permutations and combinations, so basically for my assignment I was given a story about Tom and jerry and... more
Combinations And Permutations

01/13/17

Help me out with this problem

If the four letter words(need not be meaningful) are to be formed using the letters from the word, "MEDITERRANEAN" such that the first letter is "R" and the fourth letter is "E", then the total... more
Combinations And Permutations

01/11/17

What is the total number of combinations for 7 on-off switches when multiple swithes can be simultaneously on-off? Is it 2x2x2x2x2x2x2?

2x2x2x2x2x2x2 seems too small a number of combinations. 
Combinations And Permutations Mathematics

12/10/16

51 republican, 48 democrats, 1 independent, how many committees if 3 republicans and 2 democrats are on each

The senate in a certain state is comprised of 51 republicans, 48 democrats, and 1 independent. How many committees can be formed if each committee must have 3 republicans and 2 democrats
Combinations And Permutations

12/01/16

How many license plates of 3 symbols (letters and digits) can be made using at least one letter in each? ( repetition is allowed)

Is this question is a combination or a permutations? and how to solve it step by step ?
Combinations And Permutations

11/28/16

how many 2 vowel, 2 consonant subsets can be made from the set {a, b, c, d, e, f, g, h, i, j}?

 i got 1512 but not sure if this is right...
Combinations And Permutations

11/06/16

In a game of blackjack, a 2-card hand consisting of an ace and a face card or a 10 is called a blackjack.

In a game of blackjack, a 2-card hand consisting of an ace and a face card or a 10 is called a blackjack. (Round your answers to four decimal places.) (a) If a player is dealt 2 cards from a... more
Combinations And Permutations

11/06/16

Premutations

An employer interviews 9 people for 4 technical support positions in a company, and 5 of the 9 people are women. If all 9 are qualified, in how many ways can the employer fill the technical support... more
Combinations And Permutations

10/20/16

How many combinations of outfits can one make with 5 shirts, 2 trousers, 2 suits, and 1 sport coat?

Combo must be made up of 3 items such as 1 shirt 1 jacket 1 trouser etc.  The difficulty is that i can not do a general combination formula because one can not put 2 trousers together with 1 shirt... more
Combinations And Permutations Math Math Help For College

10/11/16

Permutations and Combinations

A student downloaded 5 MUSIC FILES to a portable MP3 player. In how many different orders can the songs be played? 
Combinations And Permutations

09/19/16

A group of 9 males and 9 females volunteer for a medical study. Three volunteers are selected. How many selections contain at least two females?

Doing homework only problem I can't seem to solve.
Combinations And Permutations Probability Problems

09/15/16

Probability Finite Help!!

Assume that there are 16 board members: 11 females, and 5 males including Neville. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different... more
Combinations And Permutations

07/25/16

Pizza Question

The menu at a pizza place lets you pick one of two crust types, one of three sauces, one of five types of cheese, and any number of seven different toppings. How many possible different pizzas can... more
Combinations And Permutations

07/21/16

There is a bag full of 30 different colored balls. How many different three ball combinations can you have if you pull three balls out of the bag?

Want to figure out how many possible combinations there are    
Combinations And Permutations

06/14/16

14 full time employees. In how many ways can the new boss designate 7 as coders, 4 as analysts, and 2 employees as customer service representatives?

don't know where to begin  
Combinations And Permutations Algebra 1 Algebra 2

05/30/16

permutation and combination. Please read the description

The burger shop offers cheese, lettuce, tomato, and pickles. Assuming that you are not concerned about where the toppings are, how many different ways can you order?
Combinations And Permutations Algebra 1 Algebra 2

05/30/16

security codes are made of 3 letters followed by four single digit numbers

security codes are made of 3 letters followed by four single digit numbers. How many different 7 character security codes can be made if none of the letters can repeat and the first digit must be odd? more
Combinations And Permutations Discrete Mathematics

05/21/16

Seating arrangements of 7 boys and 5 girls in a row.

In how many ways can these boys and girls be arranged in a row if between two particular boys A and B there are no boys but exactly 3 girls?
Combinations And Permutations Finite Math

05/02/16

Prof. Teachum has 6 test problems on combinations and 7 on permutations. How many ways can he select one of each?

Help! I am not sure if this is a permutation or a combination problem.

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