Multiplication principle - problems

  1. Mumbai
    Mumbai A job placement agency in Mumbai had to send ten students to five companies two to each. Two of the companies are in Mumbai and others are outside. Two of the students prefer to work in Mumbai while three prefer to work outside. In how many ways assignment
  2. No. of divisors
    triangle_div How many different divisors has number ??
  3. 7 heroes
    7statocnych 9 heroes galloping on 9 horses behind. How many ways can sort them behind?
  4. Flags
    vlajka_cz How many different flags can be made from colors purple, yellow, red, white, blue, green, orange so that each flag consisted of three different colors?
  5. Vans
    shuttlevan In how many ways can 7 shuttle vans line up at the airport?
  6. Seating
    kupe_1 How many ways can 10 people sit on 0 numbered chairs (eg seat reservation on the train)?
  7. Guests
    hostia How many ways can 5 guests sit down on 6 seats standing in a row?
  8. 2nd class variations
    cards From how many elements you can create 6972 variations of the second class?
  9. Word
    words What is the probability that a random word composed of chars T, H, A, M will be MATH?
  10. Shelf
    bookshelf.JPG How many ways are there to arrange 6 books on a shelf?
  11. Phone numbers
    old_phone How many 7-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated?
  12. Rectangles
    rectangles How many rectangles with area 3002 cm2 whose sides is natural numbers are?
  13. Football league
    football In the 5th football league is 10 teams. How many ways can be filled first, second and third place?
  14. Playing cards
    playing_cards How many possible ways are to shuffle 7 playing cards?
  15. Pairs
    pair At the table sit 8 people, 4 on one side and 4 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit?
  16. Candy
    bulls How many ways can divide 16 identical candies to 4 children?
  17. Morse alphabet
    morse_code Calculate how many words of Morse code to create compiling commas and dots in the words of one to four characters.
  18. Stacks
    euro_stacks Annie has a total of $ 702. The money must be divided into stacks so that each buyer has the same amounth of dollars. How many options she have?
  19. Coin and die
    die Flip a coin and then roll a six-sided die. How many possible combinations are there?
  20. Lock
    combination-lock Combination lock will open when the right choice of 3 numbers (from 1 to 25 inclusive) is selected. A. How many different lock combinations are possible? B. Is he combination lock named appropriately?

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