Area codes

How many 6 digit area codes are possible if the first number can't be zero?

Correct result:

n =  900000

Solution:

n=91061=9105=900000



We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you!






Showing 0 comments:
avatar




Tips to related online calculators
See also our variations calculator.
Would you like to compute count of combinations?

You need to know the following knowledge to solve this word math problem:

Next similar math problems:

  • One half
    one_half One half of ? is: ?
  • Powers
    1power Express the expression ? as the n-th power of the base 10.
  • Tricolors
    Flag_of_the_Netherlands.svg From the colors - red, blue, green, black and white, create all possible tricolors.
  • Medals
    medails In how many ways can be divided gold, silver and bronze medal among 21 contestant?
  • Olympics metals
    olympics In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
  • Password dalibor
    lock Kamila wants to change the password daliborZ by a) two consonants exchanged between themselves, b) changes one little vowel to such same great vowel c) makes this two changes. How many opportunities have a choice?
  • 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.
  • Metals
    metals_2 In the Hockey World Cup play eight teams, determine how many ways can they win gold, silver and bronze medals.
  • Task of the year
    years Determine the number of integers from 1 to 106 with ending four digits 2006.
  • Morse alphabet
    morse_code Calculate how many words of Morse code to create compiling dashes and dots in the words of one to four characters.
  • Chess
    sachovnica How many ways can select 4 fields on classic chess board with 64 fields, so that fields don't has the same color?
  • School committee
    permutations_3 7 students was elected to the school committee. In how many ways can the President, Vice-President, Secretary and Treasurer be selected?
  • Combinatorics
    fontains The city has 7 fountains. Works only 6. How many options are there that can squirt ?
  • PIN - codes
    pin How many five-digit PIN - code can we create using the even numbers?
  • Cars plates
    car_plate How many different licence plates can country have, given that they use 3 letters followed by 3 digits?
  • Bits, bytes
    bits Calculate how many different numbers can be encoded in 16-bit binary word?
  • Football league
    football In the 5th football league is 10 teams. How many ways can be filled first, second and third place?