Variations + multiplication - math problems

Number of problems found: 90

  • 2nd class variations
    cards From how many elements you can create 2450 variations of the second class?
  • Variations
    pantagram Determine the number of items when the count of variations of fourth class without repeating is 42 times larger than the count of variations of third class without repetition.
  • Medals
    medails In how many ways can be divided gold, silver and bronze medal among 21 contestant?
  • Disco
    vencek On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
  • 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?
  • Pins 2
    pin_keyboard how many different possible 4 digits pins can be found on the 10-digit keypad?
  • Olympics metals
    olympics In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
  • Combinatorics
    fontains The city has 7 fountains. Works only 6. How many options are there that can squirt ?
  • 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.
  • Bits, bytes
    bits Calculate how many different numbers can be encoded in 16-bit binary word?
  • 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.
  • Six on dice
    dices2_1 What is the probability that when throwing two dice will fall at least one six?
  • Vans
    shuttlevan In how many ways can 9 shuttle vans line up at the airport?
  • Task of the year
    years Determine the number of integers from 1 to 106 with ending four digits 2006.
  • Beads
    koralky2 How many ways can we thread 4 red, 5 blue, and 6 yellow beads onto a thread?
  • 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?
  • Football league
    football In the 5th football league is 10 teams. How many ways can be filled first, second and third place?
  • Practice
    telocvik How many ways can you place 20 pupils in a row when starting on practice?

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