Power + multiplication principle - examples

  1. No. of divisors
    triangle_div How many different divisors has number ??
  2. 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.
  3. Subsets
    1venna_sets How many are all subsets of set ??
  4. Events
    items Event N has probability of 0.24. What is the probability that the event N occurs in 8, 5, 4 try.
  5. Bits, bytes
    bits Calculate how many different numbers can be encoded in 16-bit binary word?
  6. Area codes
    us_codes How many 6 digit area codes are possible if the first number can't be zero?
  7. Boys and girls
    boy_6 There are eight boys and nine girls in the class. There were six children on the trip from this class. What is the probability that left a) only boys b) just two boys

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