Multiplication principle + reason - math problems

Number of problems found: 69

  • Hockey
    hokej Hockey match ended 8:2. How many different matches could be?
  • Dice
    dices2_4 We throw five times the dice. What is the probability that six fits exactly twice?
  • Seven
    post_1 Seven friends agree to send everyone a holiday card. How many postcards were sent?
  • Tricolors
    Flag_of_the_Netherlands.svg From the colors - red, blue, green, black and white, create all possible tricolors.
  • Two-element combinations
    combinatorics Write all two-element combinations from elements a, b, c, d.
  • Six on dice
    dices2_1 What is the probability that when throwing two dice will fall at least one six?
  • 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?
  • Chess
    chess How many different ways can initiate a game of chess (first pass)?
  • One three
    dice We throw two dice. What is the probability that max one three falls?
  • Bookshelf and books
    bookshelf How many ways can we place 7 books in a bookshelf?
  • Seating
    kupe_1 How many ways can 6 people sit on 6 numbered chairs (e. g. , seat reservation on the train)?
  • Three-digit
    seven How many three-digit natural numbers do not have the number 7?
  • Sum or product
    dice_6 What is the probability that two dice fall will have the sum 7 or product 12?
  • Hockey match
    football_2 The hockey match ended with result 3:1. How many different storylines may have the match?
  • Gold, silver, bronze
    olympics How many ways can we divide gold, silver, bronze medails if there are 6 people competing?
  • Three digits number
    plot How many are three-digit integers such that in they no digit repeats?
  • Toys
    toys 3 children pulled 12 different toys from a box. Many ways can be divided toys so that each children had at least one toy?
  • Twenty-five
    prime How many three-digit natural numbers are divisible by 25?
  • A jackpot
    jackpot3 How many times must I play this jackpot to win? A jackpot of seven games having (1 X 2), i. E. , home win or away win.
  • Points in plane
    linear_eq_1 The plane is given 12 points, 5 of which is located on a straight line. How many different lines could by draw from this points?

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