Lock

Combination lock will open when the right choice of 4 numbers (from 1 to 14 inclusive) is selected.

A. How many different lock combinations are possible?
B. Is he combination lock named appropriately?

Result

n =  38416
B



n =

Solution:

Solution in text n =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




Would you like to compute count of combinations? See also our variations calculator. See also our permutations calculator.

Next similar examples:

  1. Word
    words What is the probability that a random word composed of chars T, M, A, H will be MATH?
  2. Hockey players
    players After we cycle five hockey players sit down. What is the probability that the two best scorers of this crew will sit next to each other?
  3. Numbers
    numbers_3 How many different 4 digit natural numbers in which no digit is repeated, can be composed from digits 0,1,2,3?
  4. Phone numbers
    old_phone How many 9-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated?
  5. How many
    numbers2_41 How many double-digit numbers greater than 30 we can create from digits 0, 1, 2, 3, 4, 5? Numbers cannot be repeated in a two-digit number.
  6. Shelf
    bookshelf.JPG How many ways are there to arrange 9 books on a shelf?
  7. Rectangles
    rectangles How many rectangles with area 2832 cm2 whose sides is natural numbers are?
  8. Flags
    vlajka_cz How many different flags can be made from colors white, yellow, red, blue, green, orange so that each flag consisted of three different colors?
  9. Toys
    toys 3 children pulled 9 different toys from a box. Many ways can be divided toys so that each children had at least one toy?
  10. School trip
    hostel_1 Class has 21 students. What different ways students can be accommodated in the hostel, where available 2× 2-bed, 3× 3-bed and 2× 4-bed rooms. (Each room has its own unique number)
  11. Raffle
    tombola_3 There are 200 draws in the raffle, but only 20 of them win. What is the probability of at least 4 winnings for a group of people who have bought 5 tickets together?
  12. Kids
    kids How many different ways can sit 5 boys and 5 girls in line, if girls want to sit on the edge?
  13. Playing cards
    playing_cards How many possible ways are to shuffle 7 playing cards?
  14. 7 heroes
    7statocnych 5 heroes galloping on 5 horses behind. How many ways can sort them behind?
  15. Vans
    shuttlevan In how many ways can 8 shuttle vans line up at the airport?
  16. Pairs
    pair At the table sit 12 people, 6 on one side and 6 on the other side. Among them are 5 pairs. Every pair wants to sit opposite each other. How many ways can they sit?
  17. Subsets
    1venna_sets How many are all subsets of set ??