Permutations - math problems

Number of problems found: 75

  • Permutations without repetition
    permutations_3 From how many elements, we can create 720 permutations without repetition?
  • Elements
    fact_1 If the number of elements is decreased by two the number of permutations is decreased 30 times. How many elements are?
  • VCP equation
    combinatorics3 Solve the following equation with variations, combinations and permutations: 4 V(2,x)-3 C(2,x+ 1) - x P(2) = 0
  • Permutations with repetitions
    numbers2_1 How many times the input of 1.2.2.3.3.3.4 can be permutated into 4 digits, 3 digits and 2 digits without repetition? Ex: 4 digits = 1223, 2213, 3122, 2313, 4321. . etc 3 digits = 122.212.213.432. . etc 2 digits = 12, 21, 31, 23 I have tried permutation fo
  • N-gon
    ngon How many diagonals has convex 11-gon?
  • Digits
    numbers_2 Write the smallest and largest 2-digit number.
  • A pizza
    pizza_11 A pizza place offers 14 different toppings. How many different three topping pizzas can you order?
  • Subsets
    1venna_sets How many are all subsets of set ??
  • Possible combinations - word
    dices2 How many ways can the letters F, A, I, R be arranged?
  • Tokens
    kamene In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.
  • Word
    words What is the probability that a random word composed of chars E, Y, G, E, R, O, M, T will be the GEOMETRY?
  • Playing cards
    playing_cards How many possible ways are to shuffle 7 playing cards?
  • Vans
    shuttlevan In how many ways can 9 shuttle vans line up at the airport?
  • Word MATEMATIKA
    math_1 How many words can be created from the phrase MATEMATIKA by changing the letters' order, regardless of whether the words are meaningful?
  • How many 2
    chart_2 How many three lettered words can be formed from letters A B C D E G H if repeats are: a) not allowed b) allowed
  • Tournament
    zapisnik_2 Six teams entered the basketball tournament. How many matches will be played if each team has to play one match with each other?
  • Shelf
    bookshelf.JPG How many ways are there to arrange 6 books on a shelf?
  • School committee
    permutations_3 7 students was elected to the school committee. In how many ways can the President, Vice-President, Secretary and Treasurer be selected?
  • Seating
    kupe_1 How many ways can 6 people sit on 6 numbered chairs (e. g. , seat reservation on the train)?
  • 7 heroes
    7statocnych 9 heroes galloping on 9 horses behind. How many ways can sort them behind?

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